If it's not what You are looking for type in the equation solver your own equation and let us solve it.
25+x=91
We move all terms to the left:
25+x-(91)=0
We add all the numbers together, and all the variables
x-66=0
We move all terms containing x to the left, all other terms to the right
x=66
| -7.9+q=-33 | | 5x+40=10-5x+21x | | 47=7d–9 | | 94=x+29 | | (2x^2)^3=0 | | 6.1x10^7=2.1x10^-4 | | 2(3-4x)-5(3-2x)=-10 | | 4x-7=9x+3-10x | | 3x-3+51=90 | | 28+x=78 | | 2x-3+3x=12+5 | | -7-a=-12 | | 23=x-2 | | (x+3)2+(x)2=117 | | x-2=37 | | 10=4(6f+2)+9 | | 35•14=x | | 4y=64+8 | | 5^x=1125 | | 34=35-x | | d^2=14d+49=0 | | w+8/w^2-36=0 | | 8s+s+3s-8s=20 | | 6y=78+96 | | x^2-1.2x=1.44 | | F(x)=-4x+10 | | 4/1=12/y | | 1/2(4x+16=20 | | 2p-p+p+4p-5p=9 | | 5+5c=21 | | 2=8/f | | 4(5x-4)=4x+-18 |