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a. 2x + x= 180
3x= 180
x= 180/3
x= 60⁰
b. 40 + 2x + 34= 180
74 + 2x= 180
2x= 180- 74
2x= 106
x= 106/2
x= 53⁰
c. 30 + 2x + 60= 180
90 + 2x= 180
2x= 180 - 90
2x= 90
x= 90/2
x= 45⁰
d. 3x + 2x + x= 90
6x= 90
x= 90/6
x= 15
No. 35
a. 180⁰ - 100⁰= 80⁰
180⁰ - 85⁰= 95⁰
180⁰ - 50⁰= 130⁰
180⁰ - 95⁰= 85⁰
b. 180⁰ - 90⁰= 90⁰
180⁰- 20⁰= 160⁰
b. x=53
c.x=45
d.x=15
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