If 3a-b+12=0 and 4a-3=2b what is the value of b?
1st one times 2
6a - 2b = -24
subtract 4a - 2b = 3
2a = -27
a = -27/2
sub into 3a - b + 12 = 0
b = 3a + 12
= 3(-27/2) + 12 = -57/2
6a - 2b = -24
subtract 4a - 2b = 3
2a = -27
a = -27/2
sub into 3a - b + 12 = 0
b = 3a + 12
= 3(-27/2) + 12 = -57/2