How do you solve #4d + 7 = - (2d + 41)#?

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Answer 1 · 2015-12-01T21:47:21

#d=-8#

Distribute the negative sign on the right side.

#4d+7=-2d-41#

Subtract #7# from both sides.

#4d+7-7=-2d-41-7#

#4d=-2d-48#

Add #2d# to both sides.

#4d+2d=-2d+2d-48#

#6d=-48#

Divide both sides by #6#.

#(6d)/6=(-48)/6#

#d=-8#