50 POINTS!! WILL MARK BRAINLIEST!! SHOW ALL WORK!!
1 answer:
Answer:
x=5, y=-4
Step-by-step explanation:
2x+9y = -26
-3x-7y = 13
Multiply the first equation by 3
3(2x+9y = -26)
6x +27y = -78
Multiply the second equation by 2
2(-3x-7y = 13)
-6x -14y = 26
Add these two equations together
6x +27y = -78
-6x -14y = 26
---------------------
13y = -52
Divide by 13
13y/13 = -52/13
y = -4
Now we need to find x
2x+9y = -26
2x+9(-4) = -26
2x-36=-26
Add 36 to each side
2x-36+36 = -26+36
2x=10
Divide by 2
2x/2 =10/2
x=5
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