Find the measurement for each marked angle.
2x=y-x
y+x+2x=180

x = 30

y = 90

Step-by-step explanation:

2x=y-x

y+x+2x=180

Simplify each equation

2x=y-x

Add x to each side

2x+x = y-x+x

3x= y

y+x+2x=180

y+3x= 180

Substitute y = 3x

y + y = 180

2y = 180

Divide by 2

2y/2 =180/2

y = 90

Now solve for x

3x = 90

Divide by 3

3x/3 = 90/3

x = 30

Since we cannot see the angles, we can only solve for x and y

3x = y

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