If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x in (-oo:+oo)
-((3/4)*x)-2 = 12 // - 12
-((3/4)*x)-12-2 = 0
(-3/4)*x-12-2 = 0
-3/4*x-14 = 0 // + 14
-3/4*x = 14 // : -3/4
x = 14/(-3/4)
x = -56/3
x = -56/3
| -280=7(8+8x) | | -21=5n+2n | | -8(1+7v)=272 | | -16=5m+3m | | (3x^4)^2/3x^8 | | -2(8+b)=-52 | | Sin8x1/2 | | (x-6)(x+6)+x^2=2x(x+4) | | b+44=5b-48 | | 3(x-4)+6=3(2x-9) | | 6+2x=188 | | 11s-21=6s+29 | | 0.9x+0.1=0.5(x-12) | | 5z=2z+27 | | w+96=2w+16 | | -10(6+b)=-110 | | 14+5x=5x-9 | | 4225=625+x | | 5ln(3x-5)=10 | | 2x-15=6x-83 | | 2.10+4.60n=15.90 | | (x^2+4)(x^2+4x)=0 | | 1-x/3-1-2x/4 | | 2.10+4.60=15.90 | | -3(5-t)=28 | | 20-6x-x=5x+10 | | 75x-1=7+6x | | 3x+2y+32=29 | | 14r-2r+4r-13r-2r+1=12 | | 400-3n=163 | | -6a+8a-2a-a=7 | | 14u+u+4u+u-19u=18 |