Answer:
(2, 5)
Step-by-step explanation:
3x + 2y = 16 ---› Eqn. 1
y = -7x + 19 ---› Eqn. 2
Substitute y = (-7x + 19) into Eqn. 1.
Thus:
3x + 2(-7x + 19) = 16
3x - 14x + 38 = 16
- 11x + 38 = 16
-11x = 16 - 38
-11x = -22
Divide both sides by -11
x = 2
Substitute x = 2 into eqn. 2.
Thus:
y = -7(2) + 19
y = -14 + 19
y = 5
