Question

Y=-3x+6
y=-6x+9

How do I solve this using substitution?

Answer 1

Answer: 1. y=3x+6 = x=

−1

3

y+2

2. y=-6x+9 = x=

−1

6

y+

3

2

Explanation:

ITs easy

Answer 2

x=1

y=3

Explanation:

y=-3x+6

y=-6x+9

replace y with y

-3x+6=-6x+9

combine like variables

3x=3

x=1

substitute 1 for x to get y

y= -3(1)+6

y=3