28x+7=4x-7x

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Solution for 28x+7=4x-7x equation: 



28x+7=4x-7x

We move all terms to the left:

28x+7-(4x-7x)=0

We add all the numbers together, and all the variables

28x-(-3x)+7=0

We get rid of parentheses

28x+3x+7=0

We add all the numbers together, and all the variables

31x+7=0

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

31x=-7

x=-7/31

x=-7/31

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