If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x+21=4x
We simplify the equation to the form, which is simple to understand
x+21=4x
We move all terms containing x to the left and all other terms to the right.
+1x-4x=0-21
We simplify left and right side of the equation.
-3x=-21
We divide both sides of the equation by -3 to get x.
x=7
| x+66+x+126=180 | | 9x-17x-85=0 | | 30-(-5)= | | 4w-21-5w=51 | | 9x+17=2x+87 | | 14+t=10t+2 | | 7(2x+6)-4(2x-3)=13x+5 | | 7z-11=2z+70 | | -[(-4-6)(-4)-2]=-1(x-4) | | 12x-3+3+8x=180 | | 4n+1=t | | -21m-12=65 | | -8m-15=85 | | -15+28= | | 4x-2(8-x)=20 | | 3x^2-2x+5=7 | | 12y-6=10y | | 6(x-5)+2=3x+2 | | 10-2(x+1)=-x | | 2(65x+23)=21 | | K+4k+4w= | | 15x^2+64x+16=0 | | 100x^2-8=0 | | 7x+12=2(4x-5) | | -3(7-2x)=-1-4x | | 10-3x=-2(x+4) | | 6n=15+n | | 1-2x(x+50)=0 | | -60h+747= | | X(x+4)=8x+32 | | k=x | | 219=-231 |