Question

y=5-2x
3x-27=4
Solve by substitution

Answer 1

y=5-2x
3x=4+27=31
x=31/3
y=5-2×31/3= 5-62/3=15-62/3= -47/3

Answer 2

Given
y=5-2x
3x =4+27 = 31
X =31/3
Y =5-2×31/3
=5-62/3
=47/3