7a+21=14

Simple and best practice solution for 7a+21=14 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 7a+21=14 equation: 


Simplifying
7a + 21 = 14

Reorder the terms:
21 + 7a = 14

Solving
21 + 7a = 14

Solving for variable 'a'.

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

Add '-21' to each side of the equation.
21 + -21 + 7a = 14 + -21

Combine like terms: 21 + -21 = 0
0 + 7a = 14 + -21
7a = 14 + -21

Combine like terms: 14 + -21 = -7
7a = -7

Divide each side by '7'.
a = -1

Simplifying
a = -1

See similar equations:

| 7k-28h=14 | | x*2y*2-9z*4= | | 12=14 | | 0=-4.9t^2+14.7t+19.6 | | 169m*2-4u*2= | | 9x*2-49= | | 0=-16t^2+164t | | a*2-36= | | 37-x=115 | | 6*(2x-2)=48 | | 6(6x-2)=48 | | 16x*4-y*2= | | 9x*4-4= | | -98+2x*2= | | 3m=7m+32 | | 5x*2-45y*2= | | x+4=2-x-1 | | a*2*b-b*3= | | 4w-12=20w+6 | | 12*x*2-75= | | 4a*2-81b*2= | | x-8u=0 | | 25+4x*2= | | 2x*2-8= | | 2x(y)= | | 7*9+n=28 | | -36m*2-121= | | -x*2+16= | | 10(2)-3y=15 | | 10(2)-3=15 | | 2d+x=w | | 10(2)3y=15 |

Equations solver categories