6x+5y=-4

Question

3x-3y=9
A- 1,-2
B- 1,2
C- 2,-1
D- 3,-1
E- -1,2

Answer 1

6x + 5y = -4
3x - 3y = 9
Multiply each side of 1st Eq by -3 and 2nd Eq by 6 and add the 2 Eq:
-18x - 15y = 12
18x - 15y = 54

0 - 33y = 66
y = -2
Substitute -2 for y in fhe 2nd Eq:
3x -3 * -2 = 9
x = 1

(1 , -2).

Answer 2

Correction!
-18x - 15y = 12
18x - 18y = 54