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Solve systems of equations for y and x:

−9x + 4y = 6

9x + 5y = −33


User ADoN
by
8.0k points

1 Answer

2 votes

Answer:


y = -3


x = -2

Explanation:

Given


-9x + 4y = 6


9x + 5y = -33

Required

Find x and y

To eliminate x, we simply add both equations


-9x = 9x + 4y + 5y= 6 - 33


9y= -27

Divide by 9


y = -27/9


y = -3

Substitute -3 for y in
9x + 5y = -33


9x + 5 * -3 =-33


9x - 15 =-33

Add 15 to both sides


9x =-15 -33


9x =-18

Divide by 9


x = -18/9


x = -2

User Omar El Halabi
by
8.4k points

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