100x+80x=90

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Solution for 100x+80x=90 equation:



100x+80x=90
We move all terms to the left:
100x+80x-(90)=0
We add all the numbers together, and all the variables
180x-90=0
We move all terms containing x to the left, all other terms to the right
180x=90
x=90/180
x=1/2

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