If it's not what You are looking for type in the equation solver your own equation and let us solve it.
A in (-oo:+oo)
A = 19*20*(1/2) // - 19*20*(1/2)
A-(19*20*(1/2)) = 0
A-190 = 0
A-190 = 0 // + 190
A = 190
A = 190
| 2(n+8)=11-5(n-8) | | 3/5(2x-7)=1/4 | | 2a+5(a+3)+9= | | 9=p+20 | | 5-5z=20 | | -32=9(3x+2)+4 | | 19=3y+13 | | 7.3y-5.18=-51.3 | | 16-5p+4=7p+80 | | 470+.09x=750+.05x | | (16+2x)(24+2x)=384 | | 114+12m=330 | | 2q+5x=44 | | 470+.09x=750.05x | | 3(b-7)=63 | | 32=6h+8 | | 12z+14-10z=21-2z-1 | | 144+12m=330 | | x^6+5x^4-6x^2-20=0 | | 11(5x-3)=7(8x-7) | | -3x+8-5x=22-8x | | 98+70+42+x=180 | | 9x+11=11x-23 | | 5x+-43=4x+-11 | | 5/4x-1/2=1/2x | | -61=7y+9 | | 20-2(5x+4y)= | | -7x-44=0 | | 33/5x=21 | | 5.7s-9.5=-0.5+4.7s | | 27=4x-1 | | 24x+3=243 |