(2)( 1/4)x+(7/4)y=2 equation, where both sides are the same as X4, and x+7y=8 y=(8-x)÷7.
(3)5x-3y=x+2y 4x=5y y=4/5
(4)2(3y-3)= 6x+4 3y-3 = 3x+2 3y = 3x+5y =(3x+5)÷3