3(r-6)+2=4(r+2)-21 find the value of x and show steps

Mathematics

1 answer:

MAXImum [283]3 years ago

7 0

3(r-6) +2 = 4(r+2) -21
3r - 6r +2 = 4r +8 -21
-3r +2 = 4r -13
2 = 7r -13
15 = 7r
r = $\frac{15}{2}$
r = 7.5

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