You just divide 6/10 by 2/2 and that's 3/5.
The answer is -3, you distribute 14 then you do 18+42 and combine the x values then solve
B if I'm not mistaking
if I'm wrong I apologize
12 - 2x - 3y5
12 - (2 * 4) - (3 * -4) 5
12 - 4 + 12 * 5
12 - 4 + 60
8 + 60
68