How do you solve 4x−(x−1)=2x+7?

1 Answer
smendyka
Dec 1, 2016

x=6

Explanation:

First, expand the terms in parenthesis and combine like terms on the right side of the equation. Remember to mind the signs when expanding the parenthesis:

4x−x+1=2x+7

(4−1)x+1=2x+7

3x+1=2x+7

Now, do the necessary math on the equation to isolate the x term on one side of the equation and the constants on the other side while keeping the equation balanced:

3x+1−1−2x=2x+7−1−2x

3x−2x+0=7−1+0

(3−2)x=6

1x=6

x=6

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