g= 2h-3
Substitute the value of (g) 4g-5h=-6
4(2h-3) - 5h = -6
8h - 12 - 5h = -6
Now -12 is going other side and it’ll change sign
3h= -6+12
3h = 6
H= 6/3
H= 2
CheckBy substitute the value of h
g= 2h - 3
g = 2(2) - 3
g= 4-3
g = 1
1g = 1
Hence proved.