Question

Use substitution to solve the system.

X= ?
Y= ?

5x+4y = -10
x = 3y+17

Answer 1

x=3.4

y=-6.75

Explanation:

5x+4y=-10 (equation 1 )

-5x+3y=-17 (equation 2)

7y=-27

y=-6.75

substitution (equation 1 ) y=-6.75

5x-27=-10

5x=17

x=3.4