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(3x + 8) - (3x - 9) in standard form

User Shirlyn
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2 Answers

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The answer would be 17.

3x + 8 - 3x + 9

(3x - 3x) + 8 + 9

8 + 9

17.
User Fabian Kleiser
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6 votes
If in standard form you mean slope intercept form, then you are looking to create an equation that looks like this:

y = mx + b

So you need to move around the numbers whilst keeping both sides equivalent.

3x - 9 = 7y
7y = 3x - 9
y = (3x)/7 - 9/7

Your answer should look like this:

y = (3x)/7 - 9/7

User Daniel Emge
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