Solve by substution

1. y=-4x+2

y=x-3

2. 7x+2y=18

6x6y=0

The answer to your question is:

Step-by-step explanation:

1. - y = 4x + 2

y = x - 3

x - 3 = 4x + 2

4x - x = - 3 - 2

3x = - 5

x = - 5/3

y = - 5/3 - 3

y = (-5 - 9) / 3

y = - 14/3

2. - 7x + 2y = 18

6x (+) 6y = 0 There is no sign in the second

equation