If it's not what You are looking for type in the equation solver your own equation and let us solve it.
12x-42=48
We move all terms to the left:
12x-42-(48)=0
We add all the numbers together, and all the variables
12x-90=0
We move all terms containing x to the left, all other terms to the right
12x=90
x=90/12
x=7+1/2
| 6(5g+20=30g | | X(9)=2-8x | | 1-x/3-1-(2x)/4+1-(3x)/5=0 | | 15x+6=9x+27 | | B)3(x+4)=3x+11 | | 140-y=32 | | 4^(x+1)=265 | | K(-3)=16x+1 | | 4x-3=7.4 | | 2w-9=8w-21 | | 5=5x−3 | | 3h-6/3=3h | | (11x-1)+(9x+21)=180 | | 8x-60=8x+60 | | 4x–29=95 | | 8x-60=8x+8 | | n^2+7n-294=0 | | 3n^2+2n-456=0 | | 5x=15=180 | | 70x+30=310 | | 1/3(2x+3)−1/5(x+6)=4 | | 30x70=310 | | Y+16=2x+24 | | F(n)=3n+3 | | 5−3c=1−6 | | 8x-60=7x-60 | | 7w^2=1183 | | 2x+8−−−−−√=x | | −133x+135=1311+35x | | 6*(4r+5)=24r+5 | | 11x/9+4x/11=5 | | M=2n-1 |