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-2.5(-2.6+3.6k)=42.5
We move all terms to the left:
-2.5(-2.6+3.6k)-(42.5)=0
We add all the numbers together, and all the variables
-2.5(3.6k-2.6)-(42.5)=0
We add all the numbers together, and all the variables
-2.5(3.6k-2.6)-42.5=0
We multiply parentheses
-7.5k+6.5-42.5=0
We add all the numbers together, and all the variables
-7.5k-36=0
We move all terms containing k to the left, all other terms to the right
-7.5k=36
k=36/-7.5
k=-4+6/7.5
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