If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2x+x+51=84
We move all terms to the left:
2x+x+51-(84)=0
We add all the numbers together, and all the variables
3x-33=0
We move all terms containing x to the left, all other terms to the right
3x=33
x=33/3
x=11
| -45=-3b-3 | | u+5u=48 | | n-11=-23 | | 13=a+7 | | 15-17b=-20-14-17b | | (4x+21)+(3x+14)=180 | | 7z+19+1z=55-4z | | (-9x+3)/3=x+9 | | -5+16g+5=16g-19 | | 3d-8=d/2+2 | | -5y+10=10y-20 | | 6x+21(3.5)=103 | | 19.95=5x+35 | | 9v=89 | | -x-9=6x-86 | | -2(8x-2)+7x=180 | | (X-y)+50=180 | | 3(0.3x+0.1)+2.24=0 | | Y=2^x-3 | | x/20-15=45 | | 5=9-a | | 7x+3=9x+35 | | 3(2x-5)-4+8=-1 | | 6x-9-x=-14 | | -16x+4+7x=180 | | 18-c=15 | | 62h+50-14h=48h+50 | | 16x+4+7x=180 | | 0=r-2 | | 12+2p=4p | | 4(x+4)=24+24+6x | | 3-3x+9-12x=6-3x-54 |