If it's not what You are looking for type in the equation solver your own equation and let us solve it.
n in (-oo:+oo)
21/4 = n/6 // - n/6
21/4-(n/6) = 0
21/4-1/6*n = 0 // - 21/4
-1/6*n = -21/4 // : -1/6
n = -21/4/(-1/6)
n = 63/2
n = 63/2
| 20x^2+34x+6=0 | | 3*(0)+8y-1=0 | | y+3+1=6 | | 12/9=5/x | | 11y+1=10y-7 | | 8(7-p)-8=-16(p-3) | | 5x=200-4y | | 7x+10+67-2x+3x+3=180 | | 1/6x-5=15 | | 4.2(y+8)=10.5 | | -9x-7=-4x-2 | | 60/240=1.5/n | | y-168=12(x-18) | | 5x+4y=200 | | 5/7x=5/49 | | 3c+15d= | | 3(x+3.9)=22.8 | | 14=3x+y | | 32.5/25=97.5/q | | 10x=201-8y | | -38-(-41)=x/2 | | N/20=3/4 | | X^2-4x-200=0 | | 12.04=2.8w-7 | | -7x-4y=-87 | | 2(3)+3(1)=11 | | -0.4x=-20 | | h(t)=-16t^2+150t+406 | | 3x-10=x^2 | | -1.6=m/-2.5 | | 2+10x=5x+27 | | 4.39+1.96= |