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lbvjy [14]
2 years ago
12

What is the solution to this system of equations? x + 2 y = 4. 2 x minus 2 y = 5.

Mathematics
2 answers:
Verdich [7]2 years ago
5 0

Answer:

y=1/2

Step-by-step explanation:

Mila [183]2 years ago
3 0

Answer:

(x,y) = (5.8,-0.4)

Step-by-step explanation:

1.)  x + 2y = 4.2 - 2y = 5

2.) { x + 2y =5

    { 4.2 - 2y = 5

3.) { x + 2y = 5

    { y = -0.4

4.) x + 2x ( -4.0 ) = 5

5.) x= 5.8 ( a possible solution )

6.) ( x , y ) = ( 5.8 , -0.4 )  check to the solution

7.)  5.8 + 2 x ( -0.4 ) = 4.2 - 2 x ( -0.4 ) = 5

8.) 5 =5 =5

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