Question

8x-1.4X6=9.6 7.5x+4.5x=20 2x-3分之1x=15分之8 5分之2x+3分之1=9分之4

Answer 1

8x-1.4X6=9.6

8x=9.6+8.4

8x=18

x=9/4

7.5x+4.5x=20

12x=20

x=5/3

2x-x/3=8/15

5x/3=8/15

x=8/15×3/5

x=8/25

2x/5+1/3=4/9

2x/5=4/9-3/9

2x/5=1/9

x=1/9×5/2

x=5/18

7x/30=0.35

7x=0.35×30

7x=10.5

x=1.5