If it's not what You are looking for type in the equation solver your own equation and let us solve it.
21x-5+100=90
We move all terms to the left:
21x-5+100-(90)=0
We add all the numbers together, and all the variables
21x+5=0
We move all terms containing x to the left, all other terms to the right
21x=-5
x=-5/21
x=-5/21
| 49.2=4.2p | | 0.055y=33 | | (2/3)z=-24;z | | 3(2x+6)=x+ | | 5u+15-7u=13 | | 8x+8=20+4x | | 134=-6(1+5x)-5x | | 2x+3=-9x-8 | | 8t=9t+17 | | 12*b=48 | | 21x-5+100=180 | | 2x+33=135 | | -19-4r-8r=11-14r | | 5x-4/18=4 | | -20x-5=7+4x | | 65+5h=80 | | 1000=3x+{-1}^{x} | | x/0.4=24 | | x^2+14x-156=0 | | -19j+5=20-18j | | 2u+2=2(u-8) | | 2x(x+1)=2x+50 | | m/3-11=14 | | 11x-9+9x+9=180 | | 10x+20=5x-15* | | 5x-8/2=2* | | 100*3=a | | X+y+2/3y=17 | | 3y-1=5y+2/3 | | -19c+12=-17c | | 7(5-w)=3(w-5) | | -5x+8=-4x+3 |