Question

Solve the following system of equations by using the substitution method.
2x – 3y = -1
y = x – 1
Answer

(3, 4)

(2, 3)

(4, 3)

Inconsistent

Answer 1

Since y = x - 1, substitute into the first equation, you get

2x - 3(x - 1) = -1
2x -3x + 3 = -1
-x + 3 = -1
-x = -4
x = 4

Since x = 4, substitute that into y = x - 1, to get y = 3

So x = 4 and y = 3 is the solution.

Answer 2

@Easyaspi314 Thanks for your help and your explanation. ((:

Answer 3

Welcome.