Question

Solve using substitution

y=-7x^2-9x+6
y= 1/2x+11

y=-x^2+x-5
y=x-5

y=3x^2-2x-1
y=x-1

y=2x^2-3x-1
y=x-3

Answer 1

1) y=−7x2−9x+6

2)y=1/2x +11

3) y=−x2+x−5

4) y=x−5

5) y=3x2−2x−1

6) y=x−1

7) y=2x2−3x−1

8) y=x−3

Explanation: