5x+7=3X=31

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Solution for 5x+7=3X=31 equation: 



5x+7=3x=31

We move all terms to the left:

5x+7-(3x)=0

We add all the numbers together, and all the variables

2x+7=0

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

2x=-7

x=-7/2

x=-3+1/2

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