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2x+5*2x+2=40
We move all terms to the left:
2x+5*2x+2-(40)=0
We add all the numbers together, and all the variables
2x+5*2x-38=0
Wy multiply elements
2x+10x-38=0
We add all the numbers together, and all the variables
12x-38=0
We move all terms containing x to the left, all other terms to the right
12x=38
x=38/12
x=3+1/6
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