7x+4+3x+8=90

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Solution for 7x+4+3x+8=90 equation: 



7x+4+3x+8=90

We move all terms to the left:

7x+4+3x+8-(90)=0

We add all the numbers together, and all the variables

10x-78=0

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

10x=78

x=78/10

x=7+4/5

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