If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-7+u=6
We move all terms to the left:
-7+u-(6)=0
We add all the numbers together, and all the variables
u-13=0
We move all terms containing u to the left, all other terms to the right
u=13
| -3/4x=9/7 | | 6(10)^(3x)=20 | | -7+4=-h+9 | | -1.2=-0.2r | | 9w^2=-64 | | 2x-23+47x-121x(3-0)=9 | | (2x-8)+(x-2)=180 | | (X+1)^2(2X-x^2)=0 | | 15x-4=14x+4 | | -51/4x=-21 | | 4z^2+4z–9=0 | | 4z2+4z–9=0 | | 13+14=3×f;f= | | 1/2x=-81/4 | | 37+s=80÷2;s= | | 7x-7=2x1 | | 420÷d=30;d | | 420÷d=30;d= | | -61/2z=-13 | | 2x-4(x+3)=5x+9 | | n/18=1/6 | | 5x+9+104=90 | | 6n+40=76 | | -16=-4t | | 3x-1=65 | | 4(5-13)=y-4 | | 3x-1+77=90 | | -0.6m=6.72 | | 16x+30+10x^=360 | | 2(x+2)-6x=8 | | 6y+4(y-4)=14 | | 21=3-7x |