If it's not what You are looking for type in the equation solver your own equation and let us solve it.
21-(3*(18/6)) = 0
21-(3*3) = 0
21-9 = 0
12 = 0
L <> R
| 7x-6-3x=8x-5 | | 3(2z+6)=2(z+10) | | 8=4x+2x+1 | | 2x+z=2y | | 4(x+2)-3(x-1)=8(x+2) | | X2-1/5x | | 4x^2+60x+104=0 | | 2x-10=5-3x | | y=-1+2(2) | | 4x+11=-1009-8x | | y=-1+2(0) | | y=-1+2(-2) | | -5y=5-10x | | A=4x^2+60x+104/10 | | 6x^2+y^2+10x=0 | | a=9/1.5 | | 7/8+1/7(y-8)=y+1/8 | | 2x^2+15x-11= | | y=2+-0.5(0) | | y=2+-0.5(-2) | | 5(2x+1)=4(3x-2) | | -e+2-3e+4=-5+6e-7+8e | | y=2+-0.5(-4) | | 2(m-1)-7=3 | | -2(7+n)=30 | | 7/8y+1/7(y-8)=y+11/8 | | 5+3x+9x=19 | | 0=13m+28-6m^2 | | y=6-5(3) | | 47-x=188 | | 2.4+10m=6.84 | | y=6-5(2) |