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3 years ago

Solve the system of equations. -9Y +4X -20 =0 -7Y +16 X -80 =0 X= Y=

Mathematics

1 answer:

Fofino [41]3 years ago

3 0

Answer:

X=5, Y=0

Step-by-step explanation:

-9Y +4X -20=0

-7Y+16X-80=0

1. We can multiply the first equation by 4. This will equal to -36Y +16X-80=0.

-36Y +16X -80 =0

-7Y+16X-80=0

2. We can subtract these two equations.

-36Y +16X -80 =0

-7Y+16X-80=0

We will get -29Y =0. Y=0.

3. Then we can substitute y into the first equation. -9(0) +4x-20 =0. 4x=20. x=5

X=5, Y=0

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Read 2 more answers

Someone give me the answer

Mademuasel [1]

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4 years ago

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3 years ago

Andries get grandfather get offered to give him a gift of 50% of the amount of money he saved in one year. And Ray saved $120. H

sertanlavr [38]

Answer:

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Step-by-step explanation:

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