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If 2A = 3b is not equal to 0, then (a + b) is better than B =?
Because 2A = 3B
So a = 3 / 2B = 1.5b
So (a + b) / b = 2.5b/b = 2.5 = 5 / 2
Let 2a-3b = 0, then ab=______ ，a−bb=______ ．
∵ 2a-3b = 0, ∵ 2A = 3b, ∵ AB = 32; a − BB = AB-1 = 32-1 = 12
It is known that if A-B ≠ 0 and 2a-3b = 0, then the value of the algebraic formula 2A + BA − B is ()
A. 8b. 8 or 12C. 0d. - 12
∵ 2a-3b = 0, ∵ a = 32B, ∵ 2A + BA − B = 2 × 32B + b32b − B = 8
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