Question

2*x+3=17
9+3*x=27
2*4*x=320
5*x:7=175
144:(2x)=6​

Answer 1

2•x+3=17

2x=17-3

2x=14

x=7

9+3•x=27

3x=27-9

3x=18

x=6

2•4•x=320

8x=320

x=40

5•x:7=175

5/7x=175

x=245

144:(2x)=6

144/2x=6

72/x=6

72=6x

6x=72

x=12

Answer 2

Explicație pas cu pas:

2*x+3=17

2*x=17-3=14

x=14:2

x=7

9+3*x=27

3*x=27-9=18

x=18:3

x=6

2*4*x=320

8*x=320

x=320:8

x=40

5*x:7=175

5*x=175*7

5*x= 1225

x=1225:5

x=245

144:(2x)=6

2x=144:6

2x=24

x=12