Answered

Join IDNLearn.com and start exploring the answers to your most pressing questions. Find the information you need quickly and easily with our comprehensive and accurate Q&A platform.

Solve the simultaneous
equations
2x+y = 3
x+y=1

Sagot :

ItzTdsidn

Answer:

x = 2, y = -1

Step-by-step explanation:

Now change the equation,

→ x + y = 1

→ y = 1 - x

Then the value of x will be,

→ 2x + y = 3

→ 2x + 1 - x = 3

→ x = 3 - 1

→ [ x = 2 ]

Therefore, the value of x is 2.

Now value of y will be,

→ y = 1 - x

→ y = 1 - 2

→ [ y = -1 ]

Hence, the value of y is -1.

Fieryanswererftidn

Answer:

(2, -1)

-------

x = 2

y = -1

Step-by-step explanation:

1st equation:

  • 2x + y = 3

rewrite

  • y = 3 - 2x

2nd equation:

  • x + y = 1

rewrite

  • y = 1 - x

Solve simultaneously:

  • y = y
  • 3 - 2x = 1 - x
  • -2x + x = 1 - 3
  • -x = -2
  • x = 2

When x = 2, y = 1 - x

                    y =  1 - 2

                    y = -1

We appreciate your contributions to this forum. Don't forget to check back for the latest answers. Keep asking, answering, and sharing useful information. IDNLearn.com has the solutions to your questions. Thanks for stopping by, and see you next time for more reliable information.