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9x+10y=29 10x+9y=28 Solve by elimination
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9x+10y=29
10x+9y=28
Solve by elimination

User Mervin Hemaraju
by
5.9k points

1 Answer

4 votes

(9x + 10y = 29)9

(10x + 9y = 28) - 10


81x + 90y = 261

- 100x - 90y = - 280

- 19x = - 19

x = 1

9(1) + 10y = 29

9 - 9 + 10y = 29 - 910y=20
y=2
User Arjor
by
5.3k points
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