2x=(70+20)

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Solution for 2x=(70+20) equation: 



2x=(70+20)

We move all terms to the left:

2x-((70+20))=0

We add all the numbers together, and all the variables

2x-(90)=0

We add all the numbers together, and all the variables

2x-90=0

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

2x=90

x=90/2

x=45

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