50-2x=70-42x

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Solution for 50-2x=70-42x equation: 



50-2x=70-42x

We move all terms to the left:

50-2x-(70-42x)=0

We add all the numbers together, and all the variables

-2x-(-42x+70)+50=0

We get rid of parentheses

-2x+42x-70+50=0

We add all the numbers together, and all the variables

40x-20=0

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

40x=20

x=20/40

x=1/2

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