2x+3+4x-3x=8+7

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Solution for 2x+3+4x-3x=8+7 equation: 



2x+3+4x-3x=8+7

We move all terms to the left:

2x+3+4x-3x-(8+7)=0

We add all the numbers together, and all the variables

2x+4x-3x+3-15=0

We add all the numbers together, and all the variables

3x-12=0

We move all terms containing x to the left, all other terms to the right

3x=12

x=12/3

x=4

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