30%x+25=43

30%x+25=43
30%x = 18
x = 60

x-30%x=14
70%x =14
x = 20

x+25%x=20

125%x =20
x = 16

40%x-12=22
40%x = 34
x = 85

x+10%x=22
110%x =22
x = 20

(1-25%)x=240
75%x =240
x =320

　
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30%x+25=43
0.3x=43-25
0.3x=18
x=60

x-30%x=14
0.7x=14
x=14÷0.7
x=20

x+25%x=20
1.25x=20
x=20÷1.25
x=16

40%x-12=22
0.4x=22+12
0.4x=34
x=85

x+10%x=22
1.1x=22
x=22÷1.1
x=20

(1-25%)x=240
0.75x=240

x=240÷0.75
x=320

30%x+25=43
0.3x=18
x=60
x-30%x=14

0.7x=14
x=20
x+25%x=20

1.25x=20
x=16

40%x-12=22

0.4x=34
x=85
x+10%x=22
1.1x=22
x=20

(1-25%)x=240

0.75x=240
x=320

1.43-25=18;18/0.3=60;
2.70% X=14;X=20;
3.1.25X=20;X=16;
4.0.4X=22+12;X=85
5.1.1X=22; X=20;
6.0.75X=240; X=320