28x+15=15+21

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Solution for 28x+15=15+21 equation: 



28x+15=15+21

We move all terms to the left:

28x+15-(15+21)=0

We add all the numbers together, and all the variables

28x+15-36=0

We add all the numbers together, and all the variables

28x-21=0

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

28x=21

x=21/28

x=3/4

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