x+19+x+29=90

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Solution for x+19+x+29=90 equation:



x+19+x+29=90
We move all terms to the left:
x+19+x+29-(90)=0
We add all the numbers together, and all the variables
2x-42=0
We move all terms containing x to the left, all other terms to the right
2x=42
x=42/2
x=21

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