If it's not what You are looking for type in the equation solver your own equation and let us solve it.
3(x-21=18
We move all terms to the left:
3(x-21-(18)=0
| 20=4(3m–7) | | 100+5x=10x | | 2/3+5x=4 | | 17/21=14/15y | | -8.8+10.66=x | | 6(x-1/2)=9 | | (8x-1)/(2x+3)=2 | | 5x-10)+(x+14)=180 | | -7u+4(u-2)=-23 | | -8.8+102/3=x | | 18=2(v+8)-4v | | 5x^2+4=17 | | 3x-5x+2=9-x | | 7x=5+2(2) | | 16x+20=-14x+140 | | x+15+2x+15+3x-20+x=360 | | 5x-10)+(1+14)=180 | | 3x-5+2=9-x | | X+2+14x+49=0 | | 3x-5+2=9+x | | (x-7)/(x-2)=5/4 | | 3y+8=9y | | 3u+3=9(u+5) | | -6(u+4)=-9u+6 | | 1/4x+2=-3+1/2x | | 2t+5=6 | | 37=3.14r+r+r | | x*2-3x310=0 | | (x^2)+8=3x+36 | | 3=2x+1= | | 4x-78=4x-15 | | 2x+7/3=x+5/9 |