Question

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Answer 1

Explicación paso a paso:

2)

2y  + y + 60 = 180

3y  + 60 = 180

3y = 180 -60

3y = 120

y = 120/3

y = 40

x = 2y

x = 2(40)

x = 80

3)

∝ + 90 = ∝ +20 + x

∝ - ∝ + 90 - 20 = x

70 = x

4)

x  + 30 = 180 - 2x

x + 2x = 180 - 30

3x = 150

x = 150/3

x = 50

5)

x = 70 + 50

x = 120

6)

x = 60 + (180-145)

x = 60  +35

x = 125