how do i solve 2x+7y=-20 and y=3x+7
2 answers
2 x + 7(3x+7) = -20
The next steps would be:
23 x + 49 = -20
23x = -69
x = -3
y = 3x + 7 = -2
23 x + 49 = -20
23x = -69
x = -3
y = 3x + 7 = -2
1 answer