Question

Solve the system of equations using substitution.

y=x+6
y=-2x-3
A. (4,11)
B. (-3,3)
C. (-6,3/2)
D. (1,7)

Answer 1

Yeah I agree the answer is B

Answer 2

Answer: B

Explanation:

y=x+6

y=-2x-3

x+6=-2x-3

Add 2x to both sides

3x+6=-3

Subtract 6 from both sides

3x=-9

Divide 3 from both sides

x=-3

Put into equations

y=-3+6

y=3