a+4a=21

Simple and best practice solution for a+4a=21 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for a+4a=21 equation: 


Simplifying
a + 4a = 21

Combine like terms: a + 4a = 5a
5a = 21

Solving
5a = 21

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Divide each side by '5'.
a = 4.2

Simplifying
a = 4.2

See similar equations:

| (-6/3)*(-11/4)=x | | 1.2-(6/x)/(3/x)=0 | | z^2-4z+5i=0 | | 1.2-6/x/3/x=0 | | (x-3)(7-2x)=0 | | 6=3x-4 | | 3*(8/5)-4y=0 | | 2x-4(x-4)=-3+4x+7 | | 3*8/5-4y=0 | | 4y=24/5 | | (-11/2)-(5/12)=x | | -8z=67 | | x+3=-x+4 | | 0.5(6x+12)-4x=-3(x+1) | | x^2-30=70 | | b(-a-2b)=1 | | 10+2y=-2 | | 10z=23 | | 2(x-4)+4=8 | | .2x+x=2000 | | 10x^2+5xy= | | 17/3-7/15=x | | 4/7-6/7=x | | 6*(0.5X)=45 | | a^3+3a-1=0 | | 54x-43x=0 | | y=241/5-102/3 | | Y=2.25+2x-3 | | 5*(x-2)-2*(x-5)=2x-(10+3x) | | m+n=2mn | | 4b^2+2b-72=0 | | x+9=-x+5 |

Equations solver categories