4x+5=7x-40

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Solution for 4x+5=7x-40 equation: 



4x+5=7x-40

We move all terms to the left:

4x+5-(7x-40)=0

We get rid of parentheses

4x-7x+40+5=0

We add all the numbers together, and all the variables

-3x+45=0

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

-3x=-45

x=-45/-3

x=+15

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