write 3 different solutions of 2x - y = 7
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put the value of x as 1 ,2 and 3, one by one
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solve x = 2x - y = 7
2x = y + 7
2x / 2 = y + 7 / 2
x = y + 7 / 2
solve for y = 2x = 7 + y
- y = 7 - 2x
- y / - 1 = 7 - 2x / - 1
y = 7 - 2x / - 1
y = 2x - 7
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