Question

Examine the system of equations.

y = 3
2
x − 6,

y = −9
2
x + 21


Use substitution to solve the system of equations. What is the value of y?


y =

Answer 1

By substitution,

1.5x - 6 = -4.5x + 21

6x = 27

x = 4.5

Hence, y = 1.5(4.5) - 6 = 0.75

Answer 2

thx it's also 3/4

Answer 3

yes (:

Answer 4

The correct answer is 3/4 you were right