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a+b-29;b+c-18;c+d-15;f-a+7;f-b+g;g-c+h;h-d+6
1-((20*ln(1-0.15))/ln(2))
370.376*1.07866^x
1-((20*ln(0.85))/ln(2))
a+b-29;b+c-18;c+d-15;f-a+7;f-b+g;g-c+h;h-d+6
| 34y=368 | | 34x=367 | | 125+2x-5=180 | | xy=367 | | ln(3x-5)=ln(11)+ln(2) | | -7x+15=3x-45 | | 10-5n= | | 5sin+10cos=0 | | 4-3(4x+3)=4(2x-6)+(-1) | | 8x+39=4x-33 | | 8(3x)+4(2x)+5x=2000 | | -21-8a=1+6(4-4m) | | 2x+24=4x+26 | | 1/64x18/1 | | 3x-7+14= | | 8y=14-2x | | 5+7k=47 | | 2x^2-10-22=0 | | 175.84=3.14*r^2 | | 15.1/3-4.3/8-6.1/4= | | x=9-2 | | 3+9=-3(4x-4) | | (x+1)(y+2)=2xy | | 4x^3+21x^2-18x+1= | | (2x+22)+(x+8)+(3x+42)=180 | | 15.1/2-2.2/3-5.1/8= | | X=5/2y-15 | | (4+x)*(6+x)=63 | | 4(5x+8)=-31+3 | | 28-19m=7+2m | | 5+40x=6+30x | | 8x+21=6x+17 |