45%x=180
0.45x=180
x=400
(1+25%)x=75
1.25x=75
x=60
9+120%x=17
9+1.2x=17
1.2x=8
x=20/3
40%x+25=60
0.4x+25=60
0.4x=35
x=87.5
x-15%x=34
x-0.15x=34
0.85x=34
x=40
80%x-30%x=48
0.8x-0.3x=48
0.5x=48
x=96
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45%x=180
0.45x=180
x=180÷0.45
x= 400
(1+25%)x=75
1.25x=75
x= 60
9+120%x=17
9+1.2x=17
1.2x=8
x= 20/3
40%x+25=60
0.4x=35
x=87.5
x-15%x=34
0.85x=34
x=40
80%x-30%x=48
0.5x=48
x=96
0.45X=180 1.25x=75 1.2x=17-9 0.4x=60-25 (1-0.15)x=34
X=180/0.45 x=60 1.2x=8 0.4x=35 0.85x=34
x=400 x=8/1.2 x=87.5 x=40
x=20/3
(0.8-0.3)x=48
0.5x=48
x=96
0.45X=180 X=400