b = - 3
Explanation:
-4b + 3(6-7b) = 93
-4b + 18 - 21b = 93
-25b + 18 = 93
-25b = 93 - 18
-25b = 75
b = 75 : - 25
Answer:
b = -3
-4b + 3(6 - 7b) = 93
-4b - 21b = 93 - 18
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