If it's not what You are looking for type in the equation solver your own equation and let us solve it.
21=4x=
We move all terms to the left:
21-(4x)=0
We move all terms containing x to the left, all other terms to the right
-4x=-21
x=-21/-4
x=5+1/4
| 2x÷8=14 | | x=9=24 | | x/3+11=8x= | | 8x-6-(3x-2)=-44 | | 2b-9=-b-(6) | | 3x-1+4x+6=26 | | 65x=75x+50 | | -4(x+3)=2 | | 7x+5=250 | | 2(1+3k)+5=13+5k | | x−3+11=8x= | | 5x+15+9=3x-12+6 | | 8x-6-3x-2=-44 | | 15+17m=-9+15m | | -4(x+4)+31=5x+3(5-4x) | | 10h-14h-9h-(-18h)-(-14h)=-19 | | x+115+80+90=360 | | 4x-6+4x=-12+4x+3x | | 5a-4+3a=4(2a+3) | | 2x-5x-21-9=90 | | 5t+13=3t−5 | | −4p+41=13 | | 1.3-5g=7.5 | | 8+6g=49 | | -7x+3-8x=18 | | -5x-5x+1+10=111 | | 7x+30=5x+30 | | 4000+2500+25x=5500+35x | | (4x+7)=(1x+5) | | 50+70+3x=180 | | 2x-5(3x-8)=25 | | 8.2-2.1=18.3x |