## Solve system by elimination -9x – y =-19 5x + y = 15

Question

Solve system by elimination -9x – y =-19

5x + y = 15

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Mathematics
3 days
2021-07-22T21:39:08+00:00
2021-07-22T21:39:08+00:00 1 Answers
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## Answers ( )

Answer:(1, 10 )

Step-by-step explanation:Given the 2 equations

– 9x – y = – 19 → (1)

5x + y = 15 → (2)

Adding the 2 equations term by term will eliminate the y- term

– 4x + 0 = – 4

– 4x = – 4 ( divide both sides by – 4 )

x = 1

Substitute x = 1 into either of the 2 equations and solve for y

Substituting into (2)

5(1) + y = 15

5 + y = 15 ( subtract 5 from both sides )

y = 10

solution is (1, 10 )