Question

解方程：①x-五分之一x=24 ②2x+四分之七=4

Answer 1

①x-五分之一x=24

(1-1/5)x=24

4/5x=24

4/5x/(4/5)=24/(4/5)

x=30

②2x+四分之七=4

2x+7/4-7/4=4-7/4

2x=9/4

2x/2=(9/4)/2

x=9/8