perfectly set up for using substitution:
in the 2nd:
4x - 2(3x+2) = -8
4x - 6x - 4 = -8
-2x = -4
x = 2 , then y = 3(2) + 2 = 8
but, anyway...
line them up in a better way:
#1: 3x - y = -2
#2: 4x - 2y = -8
double the first:
6x - 2y = -4
subtract the 2nd:
2x = 4
x = 2
sub back into the 1st:
3x - y = -2
3(2) - y = -2
6 - y = -2
-y = -8
y = 8
y=3x+2
4x-2y=-8
Solve using Elimination method
1 answer
1 answer