If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-12x=-42
We move all terms to the left:
-12x-(-42)=0
We add all the numbers together, and all the variables
-12x+42=0
We move all terms containing x to the left, all other terms to the right
-12x=-42
x=-42/-12
x=3+1/2
| 6y+3+2y+8=43 | | 9x+18=144 | | 5d-2=5 | | 2x²+4x-2=0 | | 67=11^x | | 5j+9-10j=-2j+3 | | 10−3 | | 2(2−7y)−5=111 | | -5(x-2)=2(1-2x)-8 | | 12-8x=3-5x | | -0.15=12f | | 6+2=6y+2 | | 2(r−5)+2=6 | | 6x+70=20x+8 | | 5k+7=7k-5 | | q2+ 8=12 | | 20x-80=280 | | 18=3p+p+4 | | 2x-3-2x=-3 | | 5x-16=20-4x | | 4(-6x+7)+5(2x-13)=x+23 | | -6x+14=12-8x−6x+14=12−8x | | -2(1/4-5/4a)=6 | | 53-x=14 | | 6(1+x)=-6+4x | | -39+x)+4(x-6)=-4 | | 4(2a+3)-3(a-1)=31 | | 3.2x-1.7x+5.5=0 | | –2x+5=6 | | 3x+7+6x=34* | | 6q-5=7q+15 | | 5x−16=20−4x |