Question

Find a if x is equal to 1 y is equals to minus 2 is a solution of 3 x + 4 y is equals to 2 a

Answer 1

Step 1: Flip the equation.

2a=3x+4y

Step 2: Divide both sides by 2.

2a/2 = 3x+4y/2

a= 3/2x+2y