What is the value of u in the following system of linear equations?

4u + 3v = –1
3u + 2v = 1

a) 5
b)-11/2
C)-7
d)19/3

2 answers

1st times 2
8u + 6v = -2
2nd by 3
9u + 6v= 3
subtract them
u = 5
how do you subtract this?