2(2+4a)=21

Simple and best practice solution for 2(2+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 2(2+4a)=21 equation: 


Simplifying
2(2 + 4a) = 21
(2 * 2 + 4a * 2) = 21
(4 + 8a) = 21

Solving
4 + 8a = 21

Solving for variable 'a'.

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

Add '-4' to each side of the equation.
4 + -4 + 8a = 21 + -4

Combine like terms: 4 + -4 = 0
0 + 8a = 21 + -4
8a = 21 + -4

Combine like terms: 21 + -4 = 17
8a = 17

Divide each side by '8'.
a = 2.125

Simplifying
a = 2.125

See similar equations:

| x^2+4x+y^2=9 | | 4+49=21 | | -3*(x-2)+4x=11 | | -8c=-3 | | 3x-12=-8-7x | | 2(2+49)=21 | | 4x2-5/2 | | x^2y^6/x^3y^5 | | Ln(3x-7)=ln(5-x) | | 32x^-2/5 | | 9.8(sin(30))= | | 2(5x-(x-4)/3)=4x | | 3z/8=11 | | ((4)/(c-2))-(3/c)0 | | (10-x)/4=-2 | | z/8=17 | | (12-3x)/3=5 | | 5n-(-10)=-35 | | 4h+5=27 | | x/16x^2-4/16x^2 | | 2p+3=18 | | 2f(a)=4x^2-x+4 | | m^2=3m+10 | | p^2=1p+6 | | 2(w+8)=4w+14 | | -11(k-1)-k-14=-12(y+3)+11 | | m4=-13 | | 64(r+6)+64(r-6)=20(r^2-64) | | 5-6x-4/5=x-3 | | 10+w=40-4w | | 12x+11y=114 | | 3x+7=c+11 |

Equations solver categories