x+42+2x-3=90

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Solution for x+42+2x-3=90 equation:



x+42+2x-3=90
We move all terms to the left:
x+42+2x-3-(90)=0
We add all the numbers together, and all the variables
3x-51=0
We move all terms containing x to the left, all other terms to the right
3x=51
x=51/3
x=17

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