If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x+21=115
We move all terms to the left:
x+21-(115)=0
We add all the numbers together, and all the variables
x-94=0
We move all terms containing x to the left, all other terms to the right
x=94
| -4x-5=6-11x | | -15(s-1)=-15 | | -2=(6x-8) | | –3v=7−2v | | 5x(4-4)=24 | | 2(1-2x)=3+4x | | 5/m=60/132 | | 2e-9+8e=3(2e-4)+3 | | -11.2r=1.16-11.1r | | 5x–3x=-6 | | m+2/2=2 | | -4(n-3)=9-3 | | 2/5=2x+6/5x+15 | | 24=(-3/8)x | | 6x+5=8+6x | | 5x+7=-2x+3 | | 2(b+-5)=-2 | | 6/15=18/x | | 5x+(-9)=-3x+(-5) | | 10x-4=-4+10x | | 6x35=5x | | 4x-5=-2x-10 | | h−–4=78 | | x2–3x=40. | | 2a+15+5a-38=180 | | x=3=+0.07x | | 4x+8=9x−12 | | -‐16=8+2x | | 2(p−5)=8 | | 5+(3/4)x-(5/6)x=2+(1/2)x | | –2u+6=–u | | 6(4x+8)=96 |