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a^4*((21*a^5)/7) = 0
(2*x)/100 = X/400
x-((1/5)*x)-5 = 0
3/20 = 2/p
12*x^4-(26*x^3)+54*x^2-(91*x)+42 = 0
| 4(x)-x=y | | 6x+3y=756 | | 2f-11=13-6f | | log*7(9x)+3log*7(6)=3 | | 2r+6= | | 2(x)+3(x)=y | | 2xy-5x=3y | | 21a^5/7a^4 | | (21a^5/7a^4) | | 24x^2-49x+2=0 | | 2x/100=X/400 | | 2x+4-5=45 | | log^7(9x)+3log^7(6)=3 | | x-1/5x-5 | | 3/20=2/p | | =W+(4M)+6 | | in9x^1/2-in4x^3/2 | | -5x-7-3x=-2-4x+5 | | 21x+28x=0 | | 2x+11+8x+5=6x+4 | | 20.05+3.5t=2.8-t | | 12=3(u+8)-7u | | 2z+z+3z+150=360 | | 3.5t=2.8-t+20.05 | | 4cos^3(1)= | | 8x+10=4(c+3) | | 8x-9=25x | | -3/2u-3=7/5u-5/2 | | 4b+4=2(b-5) | | 5/6x42 | | 1/2r/5/2 | | 3.5t=2.8-t+20.5 |