Question

If 2a-3 =1 and 3b - 1 =5,evaluate a+ 2b

Answer 1

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$2a - 3 = 1 \\ 2a = 4 \\ a = 2 \\ 3b - 1 = 5 \\ 3b = 6 \\ b = 2 \\ now \: \: a + 2b = 2 + 2.2 = 6$