(2+x)*4=20

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Solution for (2+x)*4=20 equation: 



(2+x)*4=20

We move all terms to the left:

(2+x)*4-(20)=0

We add all the numbers together, and all the variables

(x+2)*4-20=0

We multiply parentheses

4x+8-20=0

We add all the numbers together, and all the variables

4x-12=0

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

4x=12

x=12/4

x=3

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