Step-by-step explanation:
1.
106+2y = 180
2y = 180-106
2y = 74
y = 37
x= 2y
x = 74
4z+6 = 106
4z = 106-6
4z = 100
z = 25
2.
180-90 = 90
3x = 90
x = 30
z = 180 - x
z = 180 - 30
z = 150
2y = 180 - z
2y = 180 - 150
2y = 30
y = 15
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Answers & Comments
Step-by-step explanation:
1.
106+2y = 180
2y = 180-106
2y = 74
y = 37
x= 2y
x = 74
4z+6 = 106
4z = 106-6
4z = 100
z = 25
2.
180-90 = 90
3x = 90
x = 30
z = 180 - x
z = 180 - 30
z = 150
2y = 180 - z
2y = 180 - 150
2y = 30
y = 15