Four salution for each of the following equation 2x+y=7
Answers
Answer:
The four solutions of the equation 2x + y = 7 are (0, 7), (1, 5), (2, 3) and (-1, 9). (0, 9) is the solution. (1, 9-π) is the solution.
Answer:For finding the solutions of linear equation in two variables we use the following steps:
1.Put an put an arbitrary value of x or y in given equation and find the corresponding value of other variable.
Thus, we get one pair of solution of given equation.
2.Repeat repeat step 1 for another arbitrary value of x or y and get other pair of solution of given equation.
For convenience , we put x= 0 & get corresponding value of y to find one pair of solution.
Also we put y = 0 and get corresponding value of x to find 2nd pair solution.
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Solution:
(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)
hope it helps u
Step-by-step explanation:
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