Write four solutions of the equation x - y = 17
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Answered by
1
Answer:
(a)2x + y = 7(1)
On putting x=0 in equation 1
2x+y=7
2×0+y=7
0+y=7
Y=7
So( 0, 7) is a solution of given equation.
let y=0
2x+y=7
2x+0=7
2x=7
X= 7/2
So(7/2,0) is a solution of given equation.
let x = 1
2x+y=7
2×1+y=7
2+y=7
Y= 7-2
Y=5
(1,5) is the solution.
let x = 2
2x+y=7
2×2+y=7
4+y=7
Y= 7-4
Y= 3
The solution is (2,3)
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x - y = 17
when x = 0
0 - y = 17
y = - 17
when x = 1
1 - y = 17
- y = 17 - 1
- y = 16
y = - 16
when x = 2
2 - y = 17
- y = 17 - 2
- y = 15
y = - 15
when x = 3
3 - y = 17
- y = 17 - 3
- y = 14
y = - 14
(0, -17) (1, -16) (2, -15) (3, -14) are four solutions
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