7*9=(7*10)-7x

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Solution for 7*9=(7*10)-7x equation: 



7*9=(7*10)-7x

We move all terms to the left:

7*9-((7*10)-7x)=0

We add all the numbers together, and all the variables

-(70-7x)+7*9=0

We add all the numbers together, and all the variables

-(70-7x)+63=0

We get rid of parentheses

7x-70+63=0

We add all the numbers together, and all the variables

7x-7=0

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

7x=7

x=7/7

x=1

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