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20/15 = 100/x
6670;145
(2*x)/3 = 1/3
29870;2
20/15 = x/100
| 7-3d=10 | | 20/15=100/x | | x^2+5-x=25 | | 7+10d=37 | | 3n^2+6n=612 | | 2x/3=1/3 | | -6+4t=10 | | 6+3t=8t-15 | | 5x-1=-11+31 | | 20/15=x/100 | | 6(12-t)=36 | | 2x+1+3x+5x=86 | | Y=1.50x+20 | | -2(2x-7)+3y=7(x+4) | | 5(f-7)=-55 | | 4(u+5)=46 | | 6x/7-7=5 | | 15(v-2)-5(v+2)=20v | | 20a+12a-8=80 | | 0=-5x^2+30x-30 | | 7/9÷42 | | x/7=12/16 | | 3x+5(3x+12)=186 | | 16/24=4/x | | 2+3x=10-1x | | 0.5*(9x+3)=0 | | 0=-3x^2-30x-63 | | 10(s-7)=-97 | | -2=3x/5 | | -13=1+8x+2 | | -7=5-2n-4n | | x+2.333=11.6 |