Column fractional equation, and talk about the steps to solve fractional equation.

Setting a alone completes x days, which is 2x. Then Party A has completed the work of 1/x every day, and has completed1/2x;

( 1/x+ 1/2x)* 20 = 1

x=30

A fee: 30* 1000=30000.

Paid: 60 * 550 = 33000

A: 30 days to complete the project; The company will choose a construction team, with a cost of 30,000 yuan.

—— Fengqi East Road Elite Education He Laoshi