8x-4+7x+4=40

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Solution for 8x-4+7x+4=40 equation: 



8x-4+7x+4=40

We move all terms to the left:

8x-4+7x+4-(40)=0

We add all the numbers together, and all the variables

15x-40=0

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

15x=40

x=40/15

x=2+2/3

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