x+109+x+89=90

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Solution for x+109+x+89=90 equation:



x+109+x+89=90
We move all terms to the left:
x+109+x+89-(90)=0
We add all the numbers together, and all the variables
2x+108=0
We move all terms containing x to the left, all other terms to the right
2x=-108
x=-108/2
x=-54

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