Angle a and b form a linear pair. If a - 2b = 30o find a and b.
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A+b=180 _1
A-2b=30 _2
Subtract 1from2
A+b-a+ 2b=180-30
3b=150
B=50
A+b=180
A+50=180a=130
A-2b=30 _2
Subtract 1from2
A+b-a+ 2b=180-30
3b=150
B=50
A+b=180
A+50=180a=130
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