Answer:
there is no solution for these linear equations in two variables.
since a1 (y) = a2 (y)
b1 (5x) = b2 (5x)
but, c1 (12) not equal to c2 (18)
Step-by-step explanation:6
20------40%
x-----100%
x=(20*100)/40
x=2000/40
x=50
D.
