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kobusy [5.1K]
3 years ago
11

5x-y=-1 + -5x+3y=25 this is elimination two variable

Mathematics
1 answer:
Law Incorporation [45]3 years ago
3 0
5x-y=-1
+(-5x)+3y=25

5x-5x=0
-y+3y=2y
-1+25=24

2y=24
 divide each side by 2 and the answer is y=12

plug in 12 for y and solve for x
5x-12=-1
5x=11
x=11/5

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