Elimination method. -2y = 0.5 - 2x
6х + Зу = 6

y=-1.5

X=1.75

Step-by-step explanation:

Yuh arrange the equations in order for easy subtracting of the equations.

-2y=0.5-2x. divide both sides by 2 to get y=-x-0.25.

6x+3y=6

3y=-6x+6 then divide both sides by three to get y

y=-2x+2

now arrange

y=-2x+2

y=-x-0.25 then multiple both equations by the cordinates of X value to eliminate x

stops on an even number.

answer: they are supplementary angles

step-by-step explanation: 161+19=180. supplementary angles equal 180 degrees