Question

One solution of linear equation 2x+y=6 is
1
(1,2)
2
(2,1)
3
(2,2)
4
none of these

Answer 1

Step-by-step explanation:

Equation I:- 2x+y=5

Equation II:- x+2y=4

∴ We multiply Equation I by 2.

(2x+y=5)×(2)=(4x+2y=10)

We get equation III =4x+2y=10

Now, we subtract equation III & equation II.

(4x+2y=10)−(x+2y=4)

∴(4x−x)+(2y−2y)=(10−4)

∴(3x)+(0)=(6)

∴3x=6

∴x=

3

6

=2

We get x=2.

Now we substitute x=2 in equation II.

Equation II:- x+2y=4

∴2+2y=4

∴2y=4−2

∴2y=2

∴y=2/2

∴y=1

Solving given equations, we get : x=2,y=1.

Thus, 2,1

Answer 2

Answer:

3) (2, 2)

Step-by-step explanation:

2(2)+(2)=6

4+2=6

6=6

so, Rhs= Lhs

Hope you are clear

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