-138=-6(6d-7)

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Solution for -138=-6(6d-7) equation:



-138=-6(6d-7)
We move all terms to the left:
-138-(-6(6d-7))=0
We calculate terms in parentheses: -(-6(6d-7)), so:
-6(6d-7)
We multiply parentheses
-36d+42
Back to the equation:
-(-36d+42)
We get rid of parentheses
36d-42-138=0
We add all the numbers together, and all the variables
36d-180=0
We move all terms containing d to the left, all other terms to the right
36d=180
d=180/36
d=5

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