X+21+3x+11=90

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Solution for X+21+3x+11=90 equation: 



X+21+3X+11=90

We move all terms to the left:

X+21+3X+11-(90)=0

We add all the numbers together, and all the variables

4X-58=0

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

4X=58

X=58/4

X=14+1/2

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