Question

Solve the following systems of equations using the substitution method.

5x+3y=1
X+2y=3

Answers
(1,2)
(-1,2)
(1,-2)
(-1,-2)

Answer 1

(-1,2)

Explanation:

x = 3-2y

then

5(3-2y) + 3y = 1

15 -10y +3y = 1

14 = 7y

y = 2

then

x = 3-2(2)

x = -1