If it's not what You are looking for type in the equation solver your own equation and let us solve it.
4+2u=12
We move all terms to the left:
4+2u-(12)=0
We add all the numbers together, and all the variables
2u-8=0
We move all terms containing u to the left, all other terms to the right
2u=8
u=8/2
u=4
| 2x-21+93=180 | | 11x+2=5(×+4) | | G(-1)=2x-3 | | 11x+2=5(x×4) | | 4(2x+1)=-3(4x-3)+2x | | 6/x=x/14 | | −5(p+53 )=−4 | | 3^8x-1=9 | | 9+5x=-x+63 | | G(-5)=2x-3 | | x-15=335x | | 2/5x-13=-11 | | 168x-14=14(12x-1) | | 9+5x=x+63 | | 5/6h+16=56 | | n*n-9n-400=0 | | 19x+80=19x+17 | | 2/5x-13=11 | | -28f-35=-28+3f | | ⅛w=1½ | | a+52/3=9 | | 10(23+7)=200x | | 2(4x+5)=-5(5x-5)+4x | | 6x-10=x-25 | | 10(23+7)=200l | | 2(2x+4)=-5(5x-4)+4x | | 2(2x8)=3x+4 | | 7x-7-2x+10=5x | | 2(5x+1)=-2(5x-5)+3x | | 8(4-2x)=4 | | 4,3x+0,5=12 | | 2(5x+5)=-3(3x-4)+2x |