How do you solve #y=x^2-x-20, y=3x+12# using substitution?
1 Answer
Jan 6, 2017
Explanation:
Given
[1]
[2]
Using [2] we can substitute
[3]
[4]
[5]
[6]
or
[7]
Using [6] in [2]
[8]
or
Using [7] in [2]
[9]