If it's not what You are looking for type in the equation solver your own equation and let us solve it.
3+4u=13
We move all terms to the left:
3+4u-(13)=0
We add all the numbers together, and all the variables
4u-10=0
We move all terms containing u to the left, all other terms to the right
4u=10
u=10/4
u=2+1/2
| 48=12+9u | | -4(k-6=4 | | 14x+11x+31=4x-38 | | 8+1/5b=31/0b | | 6x-7=-6+65 | | 3.5w=7 | | 10x-7=20x+9 | | 6x-7=6x+65 | | -10x-4=-6x+11 | | 4x+(5x-30)=90 | | -5x-9=68+2x | | 4x=(5x-30)=90 | | 3=3y+9 | | 5f+25=75 | | 15y+6+10y-50+40y-60=5(20+13y) | | 17-4t=1 | | (4/5x)+32=8 | | 9=2z-3 | | x10-143=5x-13 | | x10-143=135x- | | (4/5x+32)=8 | | 5x+10=7x+22 | | 4x-3=2(3x-1)-2x-1 | | 8x-13=5x+2+x | | 4z/9+7=0 | | 25n=72n+-720 | | 15w-12w-3w+3w=12 | | 9=m/2+7 | | 2u-2u+3u=9 | | 2x+x+15+60=180 | | 14x=-(5x-6-4x) | | 2x+x+15+120=180 |