1) y=3x-1
2x+3y=8
2x +3*(3x-1)=8
2x + 9x = 11
x=1
2) y=1-7x
4x-y=4
4x - 1 + 7x=4
11x = 5
x = 5/11
2x+3(3x-1)=8 4x-(1-7x)=4
2x+9x-3=8 4x-1+7x=4
11x=11 11x=5
x=1 x=5/11
1) y=3x-1
2x+3y=8
2x +3*(3x-1)=8
2x + 9x = 11
x=1
2) y=1-7x
4x-y=4
4x - 1 + 7x=4
11x = 5
x = 5/11
2x+3(3x-1)=8 4x-(1-7x)=4
2x+9x-3=8 4x-1+7x=4
11x=11 11x=5
x=1 x=5/11