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Sidana [21]
4 years ago
7

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

Mathematics
2 answers:
MA_775_DIABLO [31]4 years ago
6 0
6(-1 - 4) = 30(-1)
6(-5) = -30
-30 = -30
so -1 is a solution
Delvig [45]4 years ago
4 0
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. 
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