Answer:
Explanation:
-5(r + 4) = -87
-5r - 20 = -87
-5r = -87 + 20
-5r = -67
r = -67 : (-5)
r = 67/5
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check
-5( 67/5 + 4 ) = -87
-67 - 20 = -87
-87 = -87
the answer is good
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