Question

Solve by elimination method:
x-2y-1=0
3x-y-17=0​

Answer 1

Step-by-step explanation:

Answer

Given equations are

3x+2y=1 ....(1)

and 2x+3y=4 ....(2)

Multiply equation (1) by 3 and equation (2) by 2, we get

9x+6y=3 ....(3)

and 4x+6y=8 .... (4)

Subtract both the equations to eliminate y, we get

5x=−5

⇒x=−1

Substitute this value in equation (1),

3(−1)+2y=1

⇒−3+2y=1

⇒2y=4

⇒y=2

Therefore, the solution is x=−1,y=2.

Answer 2

Step-by-step explanation:

Mathematics is the science that deals with the logic of shape, quantity and arrangement. Math is all around us, in everything we do. It is the building block for everything in our daily lives, including mobile devices, architecture (ancient and modern), art, money, engineering, and even sports.