Solve each system by substitution

y=-4x + 5

y = - 2x + 1

[-2x+1=-4x+5] is the first step and isolate for x - 2x+1=-4x+5: x+2 then you got y=-3 the answer will be x=2, y=-3

y = - 4x + 5; y = - 2x + 1 Step: Solve y = - 4x + 5 for y:Step: Substitute - 4x + 5 foryin y = - 2x + 1 : y = - 2x + 1 - 4x + 5 = - 2x + 1 - 4x + 5 + 2x = - 2x + 1 + 2x (Add 2x to both sides) - 2x + 5 = 1 - 2x + 5 + - 5 = 1 + - 5 (Add - 5 to both sides) - 2x = - 4 - 2x - 2 = - 4 - 2 (Divide both sides by - 2) x=2 Step: Substitute2forxin y = - 4x + 5 : y = - 4x + 5 y = (-4) (2) + 5 y = - 3 (Simplify both sides of the equation)

x = 2 and y = - 3