Solve for a
a = \frac{160}{59} = 2\frac{42}{59} \approx 2.711864407
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60a=a-20+180
Multiply 3 and 60 to get 180.
60a=a+160
Add -20 and 180 to get 160.
60a-a=160
Subtract a from both sides.
59a=160
Combine 60a and -a to get 59a.
a=\frac{160}{59}
Divide both sides by 59.
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