If it's not what You are looking for type in the equation solver your own equation and let us solve it.
12+18-x=5x
We move all terms to the left:
12+18-x-(5x)=0
We add all the numbers together, and all the variables
-6x+30=0
We move all terms containing x to the left, all other terms to the right
-6x=-30
x=-30/-6
x=+5
| a-(-14)=33 | | 19x+6+20=180 | | 7x=7(7) | | −t/7=1/15 | | 2/3p=-20 | | 10-10x10=-80 | | -2(4x+12)-2x=56 | | 4−m2=104- | | 10×(100-x)+2x=3×(x+9)-28 | | -2(4x+12×)-2x=56 | | 7p-(1)-(9p)+5= | | 7r-4+2r=12+7r | | 1/2r-7/6=-1/3r+53/6 | | 0.1(n+0.8)=0.21 | | 10-10x10=X | | -7+3x+10+4x-x+2=6x+5 | | 4x+5x-37=180 | | 15=3000,100=x | | (x+5)+8=3 | | 4x6=3x7 | | 3=+2(8-k)=3k-1 | | |7x-6|=4 | | -4(x+3)-2(x-4)=-34 | | 0.5m+3=m | | 4(x+2)+3(x-4)=24 | | -2+2x=6+24x | | 2d+9=-17 | | (3x+2)(x-4)=9 | | 4x-(x+3)=-15 | | -4x-7=-5x-10 | | 10-2(y+4)=-18 | | 6-6x=5x-9x=+4 |