Question

解方程:5x-3.7=8.5 x-13=104 3x-x=41.6 4x/1/2==0.8

Answer 1

5x-3.7=8.5

5x=8.5+3.7

5x=12.2

x=12.2/5

x=2.44

x-13=104

x=104+13

x=117

3x-x=41.6

2x=41.6

x=41.6/2

x=20.8

4x/1/2==0.8

4x=0.8*2

4x=1.6

x=1.6/4

x=0.4