When I watching this video this looks so easy but when I taking the test it's really hard! I thought the answer is - 12q + 10. bcoz the the rule is "negative minus negative" the number will be just get more negative? How would, for example 2z-7-1 = 2z + 8(4 votes). Gauth Tutor Solution.
Equivalent Expression Calculator is a free online tool that displays the equivalent expressions for the given algebraic expression. Crop a question and search for answer. Subtracting a z is the exact same thing as subtracting 1z. Now let's look at the z's. Created by Sal Khan. Explain your answer. But I really want to emphasize that there's a very common sense intuition here. Which expression is equivalent to 3b 2r 4b r e. Combine the like terms of the second expression. In this case, that thing are x's. And it said the answer is this: 4t-t+2=(4-1)t+2. So you're the 5 or the negative 2 in this case.
And you might say, hey, wait. The simplification calculator allows you to take a simple or complex expression and simplify and reduce the expression to it's simplest form. The calculator works for both numbers and expressions containing variables. Well you are just add the X's to the numbers like this (the first number is the coefficient btw)2x +4X = whatever the answer would be.
Only you can answer that, what is your attitude toward Math in general? Then i have plus 8z, and then I have minus z. Now, in a lot of algebra classes, you'll hear people say, oh, well, you know, the coefficient on 5x is 5. And it might help if we were to actually reorder the terms in this expression. Now let us consider some expressions that include variables, say. So, add their coefficients.. Also, and can be combined to get. So, your problem is actually: 4t-1t+2. And that's OK, and there's nothing wrong with that. I don t get what minus one z from 8 z and it equals 7 how? Which expression is equivalent to 4y 2. There's not some fancy algebraic magic going on here. Solution: Given expression: 3x+9.
Khan has a lot of good content that help a lot of other people, so you have to figure why it does not help you. Simplify Calculator. These right over here are the coefficients. We have a hairy-looking expression here. Then I can combine the like terms, shown with parenthesis: (2x - x) + (3y - 2y) + (4z - 3z). That is, they are equivalent expressions.
We can't think about merging the x's and the y's, at least not in any simple way right now, because that, frankly, wouldn't make any intuitive sense. But if the values are plugged in the expression, both the expressions give the same result. 4p+3 since you can combine the +6 and the -3 into +3. The expression can be rewritten as. We can re-group the right side of the equation to or or some other combination. Grade 12 ยท 2022-01-02. If I have 7 of something, and I were to add 3 more of that something, well, then, I'm going to have 10 of that something. Or maybe you are upset because someone (a teacher or parent) is making you do this, and you just protest against others telling you what to do. And so you could just say, oh, I had to just add the coefficients. Which expression is equivalent to 3b 2r 4b r.i.p. Equivalent Expressions. Similarly, in mathematics, the equivalent expressions are the expressions that are the same, even though the expression looks different.
Therefore, the two expressions are not equivalent. Like this one - 4q - ( - 8q) + 10. Ask a live tutor for help now. If I've got 8 of something and I take away 1 of them, I'm going to have 7 of that something. Combine the 2 terms containing "t" by subtracting their coefficients and you get 3t+2. Provide step-by-step explanations. Example 2: Use the Distributive Law to expand the first expression. Well, I'm going to be left with 3 x's.
And then finally, you have a plus 5. Here, the terms and are like terms. I don't see any number out front of the z. But once again, common sense tells you if you have 8 of something, and you take away 1 of them, you have 7 of that something.