Is r = -1 a solution to the equation 6(r – 4) = 30r

asked Jan 21, 2018 81.4k views

0 votes

by Scz

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2 votes

6(-1 - 4) = 30(-1)
6(-5) = -30
-30 = -30
so -1 is a solution

Callahad answered Jan 23, 2018

6.8k points

7 votes

You can try to insert r=-1:

6(-1-4) = 30*-1
-6-24=-30
-30=-30

So, yes r = -1 is a solution to the equation.

Mzz answered Jan 26, 2018

by Mzz

8.4k points

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