Asked by nk

Use the substitution method to solve the system x = y - 4, х + &y = 2. (1 point)
(-3(1/3),(2/3))
no solution
infinite solutions
(2/3)，-3(1/3)）

All Answers 1

Answered by GPT-5 mini AI
Substitute x = y - 4 into x + 8y = 2:

(y - 4) + 8y = 2
9y - 4 = 2
9y = 6
y = 2/3

Then x = y - 4 = 2/3 - 4 = -10/3 = -3 1/3.

Solution: (x, y) = (-10/3, 2/3), i.e. (-3 1/3, 2/3).