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katrin [286]
2 years ago
10

Solve by elimination 10x-9y=-10 20x-18y=-28

Mathematics
1 answer:
tekilochka [14]2 years ago
6 0

Answer:

No solutions

Step-by-step explanation:

Let's solve your system by elimination.

10x − 9y = −10

20x − 18y = −28

Multiply the first equation by -2, and multiply the second equation by 1.

−2(10x − 9y = −10)

1(20x − 18y = −28)

Becomes:

−20x + 18y = 20

 20x − 18y = −28

Add these equations to eliminate x:

0 = −8

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