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stealth61 [152]
2 years ago
7

Solve the system of linear equations using elimination. −2x − y = 3 −9x − y = 17

Mathematics
2 answers:
Gnom [1K]2 years ago
4 0

Answer: x=20/7 y=17

Step-by-step explanation:

1) Don't need to solve for y since y is already solved.

2) Solve for x:

-2x-17=-9x+3

-2x-17+9x=-9x+3+9x (Add 9x to both sides)

7x-17=3

7x-17+17=3+17 (Add 17 to both sides)

7x=20( Divide both sides by 7)

x=20/7, y=17

Nat2105 [25]2 years ago
4 0

Answer:

x=20/7 y=17

Step-by-step explanation:

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Step-by-step explanation:

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