(7+x)*5=20

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Solution for (7+x)*5=20 equation: 



(7+x)*5=20

We move all terms to the left:

(7+x)*5-(20)=0

We add all the numbers together, and all the variables

(x+7)*5-20=0

We multiply parentheses

5x+35-20=0

We add all the numbers together, and all the variables

5x+15=0

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

5x=-15

x=-15/5

x=-3

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