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-15w-12.98+4.4w=6.74-7.7w
We move all terms to the left:
-15w-12.98+4.4w-(6.74-7.7w)=0
We add all the numbers together, and all the variables
-15w+4.4w-(-7.7w+6.74)-12.98=0
We add all the numbers together, and all the variables
-10.6w-(-7.7w+6.74)-12.98=0
We get rid of parentheses
-10.6w+7.7w-6.74-12.98=0
We add all the numbers together, and all the variables
-2.9w-19.72=0
We move all terms containing w to the left, all other terms to the right
-2.9w=19.72
w=19.72/-2.9
w=-6+1/1.25
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