Start by simplifying both sides.
-13 + 76 = -(-7b + 6)Distribute the -1.-13 + 76 = -1(-7b) + -1(6)-13 + 76 = 7b - 663 = 7b - 6Isolate the variable b.63 + 6 = 7b - 6 + 669 = 7b69/7 = 7b/79.86 = bb = 9.86
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