7x+3=15x-40

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Solution for 7x+3=15x-40 equation: 



7x+3=15x-40

We move all terms to the left:

7x+3-(15x-40)=0

We get rid of parentheses

7x-15x+40+3=0

We add all the numbers together, and all the variables

-8x+43=0

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

-8x=-43

x=-43/-8

x=5+3/8

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