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GrogVix [38]
2 years ago
7

Elimination3x +2y=93x ty=01​

Mathematics
1 answer:
muminat2 years ago
8 0

Answer:

y = 9

x = -3

Step-by-step explanation:

Given

3x + 2y = 9

3x + y = 0

Required

Solve by elimination

To do this, we subtract both equations (to eliminate x)

3x + 2y = 9

- 3x + y = 0

--------------------

3x - 3x + 2y - y = 9-0

y = 9

Substitute y = 9 in 3x + y = 0

3x + 9 = 0

Solve for 3x

3x =- 9

Solve for x

x = -9/3

x = -3

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