7+4a=70-3a

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Solution for 7+4a=70-3a equation: 



7+4a=70-3a

We move all terms to the left:

7+4a-(70-3a)=0

We add all the numbers together, and all the variables

4a-(-3a+70)+7=0

We get rid of parentheses

4a+3a-70+7=0

We add all the numbers together, and all the variables

7a-63=0

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

7a=63

a=63/7

a=9

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