Question

解方程二分之一x减零点五的差除以二减零点五等于一加零点五的和乘二

Answer 1

(1/2x-0.5)/2-0.5=(1+0.5)×2

(1/2x-0.5)/2=3+0.5

1/2x-0.5=7

1/2x=7.5

x=15