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Solve the equations -9x + 2y = 23 and -4x - y = -3
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1 vote
Solve the equations -9x + 2y = 23 and -4x - y = -3

User Kristena
by
4.8k points

1 Answer

5 votes

Answer:

(-1,7)

Explanation:

-9x + 2y = 23

-4x - y = -3

multiplying equation 2 by 2

-9x + 2y = 23

-8x - 2y = -6

adding the two equation to cancel out y

-17x = 17

x = -1

plugging back x = -1 into the second equation

4 - y = -3

-y = -7

y = 7

User Musa Usman
by
5.6k points
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