10x-21=49

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Solution for 10x-21=49 equation: 



10x-21=49

We move all terms to the left:

10x-21-(49)=0

We add all the numbers together, and all the variables

10x-70=0

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

10x=70

x=70/10

x=7

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