Question

Solve for x and y:2x-y=2,3y-4x+2=0 using substitution,cross and multiplication method

Answer 1

2x-y =2
3y-4x=-2
so,2(2x-y=2)=4x-2y=4
now add both equations,
4x-2y=4
-4x+3y=-2
y=2
putting y=2 in 2x-y=2
2x-2=2
2x=2+2
2x=4
x=2