Question

①(7x+5)×五分之二=3×（x-1）+1 ②3+（六分之五x+5）×五分之二=二分之一x-1

Answer 1

1.2(7x+5)=5[3(x-1)+1]

14x+10=15x-10

x=20

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

6=(1/2-1/3)x

x=36

3 (3/5)x=3+(1/6)x

(13/30)x=3

x=90/13

4 (5/6-2/3-13/6)x=-12

-2x=-12

x=6

5 是x÷ 3÷（六分之一x+4)还是x÷3×（六分之一x+4）?

6 6x-2.4-x=25.2+2x

3x=27.6

x=9.2

7 (1/4-1/8)x=4.8+3.6

(1/8)x=8.4

x=67.2