1. 20+75+x=90
95 + x = 90
x=5
2. x+x+130=180
2x=50
x=25
3. 30 + b = 90
b=60
4. a + 90 = 120
a = 30
5. 160 + 140 + s = 360
300 + s = 360
s =60
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1. 20+75+x=90
95 + x = 90
x=5
2. x+x+130=180
2x=50
x=25
3. 30 + b = 90
b=60
4. a + 90 = 120
a = 30
5. 160 + 140 + s = 360
300 + s = 360
s =60