If it's not what You are looking for type in the equation solver your own equation and let us solve it.
U in (-oo:+oo)
U/6 = -21 // + 21
U/6+21 = 0
1/6*U+21 = 0 // - 21
1/6*U = -21 // : 1/6
U = -21/1/6
U = -126
U = -126
| 10=8d+14+14 | | 96=8(m-87) | | 7y=11x | | 2(3x-3)+.5(7+2x)=.5+3(x-1) | | 2.5x-7(6x+1)=7.5 | | -47=-w/3 | | 10x+7=50 | | 8.1x-7.7y-6.8=0 | | 8p+1=97 | | 2x-7(2x-11)-18=5(x+6)-14x | | A+23=15 | | 2(h-57)=82 | | 32.5=4.4D+19.3 | | .25x+y=745 | | 85=10-2.5*c | | 3(b+8)=66 | | 16m^2+40m+25=0 | | -3(9b+4)= | | 9y=-3/4 | | j/4-3=1 | | 1,200/8=3/n | | 13u-12u=17 | | 1.5x+2.5-1.2x-.5=3+.3x | | 4q-10=2 | | 6x^2-100x-200=0 | | 4+14+-8d=10 | | 1=3h-8 | | 1/9-5/18 | | 22=-3-5+6y | | 2.2x-7.68=4.2 | | e^3x-1=260 | | x-4=4x+10 |