(-3)(d+4)=(-15)

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Solution for (-3)(d+4)=(-15) equation: 



(-3)(d+4)=(-15)

We move all terms to the left:

(-3)(d+4)-((-15))=0

We add all the numbers together, and all the variables

(-3)(d+4)+15=0

We multiply parentheses ..

(-3d-12)+15=0

We get rid of parentheses

-3d-12+15=0

We add all the numbers together, and all the variables

-3d+3=0

We move all terms containing d to the left, all other terms to the right

-3d=-3

d=-3/-3

d=1

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