7a+8=5a+4

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Solution for 7a+8=5a+4 equation: 



7a+8=5a+4

We move all terms to the left:

7a+8-(5a+4)=0

We get rid of parentheses

7a-5a-4+8=0

We add all the numbers together, and all the variables

2a+4=0

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

2a=-4

a=-4/2

a=-2

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