Write four solutions for the given linear equation: 2x + y = 7
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1
1,5 2,3
3,1
4,-1 is the answer
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2x + y = 7
when x= 0
0 + y = 7
y = 7
when x = 1
2 + y = 7
y = 7 -2
y = 5
when x = 2
4 + y = 7
y = 7 - 4
y = 3
when x = 3
6 + y = 7
y = 7 - 6
y = 1
(0, 7) (1, 5) ( 2, 3) (3, 1) are four solutions
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