(4x+15)+(12x-5)=90

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Solution for (4x+15)+(12x-5)=90 equation: 



(4x+15)+(12x-5)=90

We move all terms to the left:

(4x+15)+(12x-5)-(90)=0

We get rid of parentheses

4x+12x+15-5-90=0

We add all the numbers together, and all the variables

16x-80=0

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

16x=80

x=80/16

x=5

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