x+0.1(-x+90)=18

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Solution for x+0.1(-x+90)=18 equation:



x+0.1(-x+90)=18
We move all terms to the left:
x+0.1(-x+90)-(18)=0
We add all the numbers together, and all the variables
x+0.1(-1x+90)-18=0
We multiply parentheses
x-0.1x+9-18=0
We add all the numbers together, and all the variables
0.9x-9=0
We move all terms containing x to the left, all other terms to the right
0.9x=9
x=9/0.9
x=10

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