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4x-20=-2(-3+20)
We move all terms to the left:
4x-20-(-2(-3+20))=0
We add all the numbers together, and all the variables
4x-20-(-217)=0
We add all the numbers together, and all the variables
4x+197=0
We move all terms containing x to the left, all other terms to the right
4x=-197
x=-197/4
x=-49+1/4
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