Answer:
so this equation has no solution.
Step-by-step explanation:
18 x + 27 y = 7.5 .......equ No 1
4 x + 6 y = 20........equ No 2
4 x = 20 - 6 y
x = [tex]\frac{20 -6 y}{4}[/tex]
substitute the value of x in equ No 1108 y
18 {[tex]\frac{20 - 6 y}{4}[/tex] } + 27 y = 7.5
18( 20 - 6y) + 27 y × 4 = 7.5 × 4
18 × 20 - 18 × 6 y +27 × 4 y =30
360 - 108 y + 108 y = 30
360 - 0 y = 30
330= 0 y
y = 330 ÷ 0 cannot be defined
so we cannot find x also .
so this equation has no solution.