If it's not what You are looking for type in the equation solver your own equation and let us solve it.
40=12+x
We move all terms to the left:
40-(12+x)=0
We add all the numbers together, and all the variables
-(x+12)+40=0
We get rid of parentheses
-x-12+40=0
We add all the numbers together, and all the variables
-1x+28=0
We move all terms containing x to the left, all other terms to the right
-x=-28
x=-28/-1
x=+28
| 6/12=14/r | | j-9=1/2 | | +6)=2-6(x+3) | | 10x+10+7x-10=180 | | 12-13y-5=19-15y | | -1-2c=-11 | | 7.5r=15 | | 7=7m-(-10+10) | | -10(m-12)=140 | | x+2=87 x−15 | | 5x+4=10x-15 | | 5g=10g-30 | | -5/6e-4/6e=-24 | | 13x+12.3=17x-8.7 | | X-4=-2x9 | | 2x=11=5 | | 2x-1-0.5x=0 | | 5+6x=17=3x | | 2(4x-2)=8x-6 | | 9=3h+6 | | 3x-11=-11 | | 3+4.7=u | | x+2x+3x+4x=900 | | 2x+25=3x+1 | | 22x+5=93 | | 6(5x-4)=96 | | 7x-10-50=10x+10 | | 10x=(x+4) | | r/13=7/14 | | c4=13 | | 3a+2(6-2a)=4 | | -10w+5=15 |