x*2+4=20

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Solution for x*2+4=20 equation: 



x*2+4=20

We move all terms to the left:

x*2+4-(20)=0

We add all the numbers together, and all the variables

x*2-16=0

Wy multiply elements

2x-16=0

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

2x=16

x=16/2

x=8

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