Question

use substitution to solve the system:
15x- = 5y + 5
y = 2x + 1

A. (5, 3)
B. (5, -2)
C (2, 3)
D (2, 5)

Answer 1

@triciaal @ashleydavidson939 @salparadise64

Answer 2

substitution
15x = 5(2x +1) + 5
15x = 10x + 5 + 5
5x = 10
x = 2

Answer 3

now you have x = 2 put this in the eqn for y
y = 2x + 1
= 2*2 + 1 = 5
solution x =2 y = 5
d =(2,5)