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3*(sin(x))^2*cos(x)
y^2+(4/y)^2
18*x+21*y-31;27*x-(3*y)-31
4*sin(4)
-8/9 = 5/9
| .75k+7=.125k+27 | | 180=(x+4)+7x | | 5(2x-3)=2(x-2)5 | | 2m=24+5m | | -3(1-6k)=6k | | 72+x+4=90 | | f(x)=86+4.3x | | 25x^2-20x-7=0 | | 2(x+1)=3x-2+1 | | -x+15=4 | | (147m^5n^7)/(441z^6) | | [15+x]=3-2x | | x=x^2-18 | | -x-15=4 | | 5-3t=0 | | 2[2x+3]-10=0 | | 92+78=x | | x-5+29=90 | | 6x+5+11x= | | x-5+20=90 | | 7x/-13 | | 9[5x+2]-7=-34 | | 3(2n-3)=4n+7 | | x-50+19=90 | | 6[3-4x]+5=59 | | -12-r=17.2 | | (x+0)(x-5)=0 | | 8-3+(-5)= | | 3+[2x+2]=15 | | 123456789x+25=-23 | | -4h(8+2h)= | | 10x^3-5x^2+2x-6=0 |