When 2A minus 3b, a plus 2B equals 3
If a = 3b-2, B = 2a-3, then the value of a is______ .
Substitute B = 2a-3 into a = 3b-2 to get a = 3 (2a-3) - 2, remove brackets to get a = 6a-9-2, transfer and merge to get 5A = 11, the solution is a = 2.2
If 2A = 3b, what is 2A & # 178; △ 3B & # 178; equal to?
2a²÷3b²
=[(2a)²/2]÷[(3b)²/3]
=(2a/3b)²/2/(1/3)
=3/2