18+8(4+x)=90

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Solution for 18+8(4+x)=90 equation: 



18+8(4+x)=90

We move all terms to the left:

18+8(4+x)-(90)=0

We add all the numbers together, and all the variables

8(x+4)+18-90=0

We add all the numbers together, and all the variables

8(x+4)-72=0

We multiply parentheses

8x+32-72=0

We add all the numbers together, and all the variables

8x-40=0

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

8x=40

x=40/8

x=5

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