Question

Which number should each side of the equation 3/4 = 9 be multiplied by to produce the equivalent equation of x = 12?

Answer 1

You need to multiply both sides of the equation by the reciprocal of 3/4. The reciprocal is 4/3 and  4/3 multiplied by 9 = 12. So x = 12 because a number times the reciprocal is one.

Answer 2

Hello :
(3/4)x=9
multiplied by : 4
3x=36
x=36/3=12