Use the substitution method to solve the system y=−3

Question

, y=2x+1

Answer 1

Since y is already isolated in the first equation, we can substitute -3 for y in the second equation:

-3 = 2x + 1

Next, we can solve for x:

2x = -3 - 1
2x = -4
x = -2

Therefore, the solution to the system is x = -2 and y = -3.