How do you solve #5(-6-3d)=3(8+7d)#?

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Answer 1 · 2018-03-27T06:19:15

#d=-1.5#

We solve this by doing distribution.

#5(-6-3d)=3(8+7d)#

This means that we "distribute" the #5# to everything in the parenthesis and "distribute" the #3# to everything to its parenthesis:

#-30-15d=24+21d#

Now we need to put all the variables on one side and the numbers on the other side of the equation:
#-36d=54#

#d=-1.5#

Hope this helps!

Answer 2 · 2018-03-27T06:21:47

#d=-3/2#

#5(-6-3d)=3(8+7d)#
#rArr -30-15d=24+21d#
#rArr 36d=-54#
#rArr d=-54/36#
#:. d=-3/2#

That's it,
Hope it helps :)