Question

Solve this system of equations using substitution. Put your answer in ordered pair form, (x, y).
x + y = 15
4x + 3y = 38

Answer 1

x = 15 - y
4 (15-y) + 3y = 38
60 - 4y + 3y = 38
60 - 38 = y = 22 --> x = 15 - y = -7
(x,y) = (-7 , 22)