2x + 5y= 18 4x + 20y= -36 solve and explain first to get right gets brainliest

Solution x=27, y-7.2

(1) 2x + 5y= 18

(2) 4x + 20y= -36

Multiply equation (1) by -2:

(1) -4x - 10y= -36

(2) 4x + 20y= -36

Add (1) to (2):

(2) 4x + 20y -4x - 10y = -36 -36

-> 10y = -72

-> y=-7.2

Use the value for y in equation (1) to get x:

(1) 2x + 5(-7.2) = 18

2x -36 = 18

2x = 54

x = 27

Solution (x,y)=(27,-7.2)

g = (2, 2)

step-by-step explanation:

given the ratio is 1 : 1 then f is the midpoint of eg

let the coordinates of g = (x, y)

using the midpoint formula

(0 + x) = 1 ( multiply both sides by 2 )

0 + x = 2 ⇒ x = 2

similarly

(4 + y) = 3 ( multiply both sides by 2 )

4 + y = 6 ( subtract 4 from both sides )

y = 2

coordinates of g = (2, 2)

its c or d   take a lucky guess my dude