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)
-1.28 = (x-15)/1.5 // - (x-15)/1.5
-((x-15)/1.5)-1.28 = 0
-0.66666667*(x-15)-1.28 = 0
-0.66666667*(x-15)-1.28 = 0
8.72000005-0.66666667*x = 0
8.72000005-0.66666667*x = 0
8.72000005-0.66666667*x = 0 // - 8.72000005
-0.66666667*x = -8.72000005 // : -0.66666667
x = -8.72000005/(-0.66666667)
x = 13.08000001
x = 13.08000001
| -11=-11 | | j-11=-11 | | -3(2x-4)+2x=2(x+8) | | 4u+27=-7(u+4) | | -36*7/3 | | -9=-6y+3(y+5) | | -36*18=-18*-36 | | 7s-6=-41+2s | | 5s-20=-36+s | | 2/15=3/2(4/9x-1) | | -12=-5 | | ab+c=90 | | (2y+2)fory=3 | | 4(0.12+2.45)=3.16x+1 | | 3/12=0 | | 21x^2-6x^2-y= | | 8x/2-3=33 | | -1.28=(x-69)/9 | | 10=(2*-3b)+8b | | x^2+6x+y^2+14y+25=0 | | -5z+36=3(4z-5) | | Y+2=4+7 | | -8v=-4v-32 | | 2/3-1/x=5/6 | | A=41 | | an=3n-8 | | 1.1v-1=2.8v-4.4 | | 12+3y=-6+1y | | yq+yk=t | | (a+2)(a^2-3a-7)= | | 2x+9y=800 | | 5x+y=360 |