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

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,