answer pls fast 8,9,11,12
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8.
x-4x/7=18
(7x-4x) /7=18
3x/7=18
x=18*7/3=42
9.
x-20x/100=40
(100x-20x) =4000
80x=4000
x=4000/80=50
11.
3(x/4+7)=36
(x+28)/4=36*3
x+28=108*4
x+28=432
x=432-28=404
12.
x+(x+2)=56
2x+2=56
2x=54
x=54/2=27
Numbers are 27 and 29
Plz mark as brainliest :D
x-4x/7=18
(7x-4x) /7=18
3x/7=18
x=18*7/3=42
9.
x-20x/100=40
(100x-20x) =4000
80x=4000
x=4000/80=50
11.
3(x/4+7)=36
(x+28)/4=36*3
x+28=108*4
x+28=432
x=432-28=404
12.
x+(x+2)=56
2x+2=56
2x=54
x=54/2=27
Numbers are 27 and 29
Plz mark as brainliest :D
ashu110:
Thank you
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