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antoniya [11.8K]
3 years ago
6

Solve the following equation-7x-4y=-4 -9x-5y=-6

Mathematics
2 answers:
maks197457 [2]3 years ago
3 0

Answer:

\boxed{x = 4~~and~~ y = -6}

.

Step-by-step explanation:

-7x - 4y = -4 (times 5) -35x - 20y = -20

-9x - 5y = -6 (times 4) -36x - 20y = -24

.

Eliminate both equations

-35x - 20y = -20

<u>-36x - 20y = -24 </u>  <u>  </u>

x = 4

.

Substitute the value of x to one of equations

-7x - 4y = -4

-7(4) - 4y = -4

-28 - 4y = -4

-4y = - 4 + 28

-4y = 24

y = \frac{24}{-4}

y = -6

Doss [256]3 years ago
3 0

Step-by-step explanation:

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Step-by-step explanation:

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Distribute

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