X+y=0 2x-3y=5 solve suing elimination method

x = 1 and y= -1

Step-by-step explanation:

Firstly, uoi need to make sure one value in front of either both y's or both x's are the same. Lets make the two x's the same.

Multiply the first simultaneous equation by -2:

-2x - 2y = 0

2x - 3y = 5

Add the two:

-2x + 2x = 0

-2y + -3y = -5y

0 + 5 = 5

5y = -5

So y = -1

Substitute all values of y with -1 in the second equation:

2x - 3(-1) = 5

2x - -3 = 5

2x + 3 = 5

2x = 5 - 3

2x = 2

x = 1

So x = 1 and y= -1

the 4th choice is the correct one

step-by-step explanation:

900 degrees

step-by-step explanation: