Find out wich of the following equation have x = 2 , y = 1 as a solution
1) 2x + 5y = 9
2) 5x + 3y = 14
3) 2x + 3y = 7
4) 2x - 3y = 1
5) 2x- 3y + 7 = 8
6) x + y + 4 = 0
Answers
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Step-by-step explanation:
- 9=9
- 13=14
- 7=7
- 1=1
- 7=7
- 7=0
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