w+w+40=90

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Solution for w+w+40=90 equation:



w+w+40=90
We move all terms to the left:
w+w+40-(90)=0
We add all the numbers together, and all the variables
2w-50=0
We move all terms containing w to the left, all other terms to the right
2w=50
w=50/2
w=25

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