x - y = 6 ----equation 1
2x + 3y = -3 -----equation 2
from equation 1 you'll have:
x - y = 6
x = 6 + y ------equation 3
substitute equation 3 to equation 2
2x + 3y = -3
2(6+y) + 3y = -3
12 + 2y + 3y = -3
2y + 3y = -3 - 12
5y = -15
y = -3
substitute to equation 3
x = 6 + y
x = 6 + (-3)
x = 3
PS: Change your mind-set about Math.
Don't hate it.
Take time to understand and surely you'll appreciate it.
It's an enjoyable subject. =)
