Question

Q. Solve the following system of linear equations by substitution method:

2x – y = 2

x + 3y =15



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Answer 1

Answer:

y=4, x=3

Step-by-step explanation:

Use the second equation to get x

x+3y=15

x=-3y+15

Substitute to the first equation

2x-y=2

2(-3y+15)-y=2

-6y+30-y=2

-7y=-30+2

-7y=-28, divide both sides by - 7

y=4

Substitute y=4 to the second equation

x+3y=15

x+3(4)=15

x+12=15

x=15-12

x=3

Answer 2

Ye Meli I'd Hai..ye aapka koi doremon ya nobita nhi h..xD