6a-21=3(2a-7)

Simple and best practice solution for 6a-21=3(2a-7) 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 6a-21=3(2a-7) equation:


Simplifying
6a + -21 = 3(2a + -7)

Reorder the terms:
-21 + 6a = 3(2a + -7)

Reorder the terms:
-21 + 6a = 3(-7 + 2a)
-21 + 6a = (-7 * 3 + 2a * 3)
-21 + 6a = (-21 + 6a)

Add '21' to each side of the equation.
-21 + 21 + 6a = -21 + 21 + 6a

Combine like terms: -21 + 21 = 0
0 + 6a = -21 + 21 + 6a
6a = -21 + 21 + 6a

Combine like terms: -21 + 21 = 0
6a = 0 + 6a
6a = 6a

Add '-6a' to each side of the equation.
6a + -6a = 6a + -6a

Combine like terms: 6a + -6a = 0
0 = 6a + -6a

Combine like terms: 6a + -6a = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

See similar equations:

| sin(2x)(3.14/4) | | 9x+36=6x | | -5(-6+.2)+4=30+x+4 | | -5.83(3p+6)-1.1(2p-5)= | | 5(5w-4w)/10 | | (9x)^(-1/2) | | (X+13)(x-17)=0 | | 8-y+4=3y-10 | | 4x^2-4x+4=39 | | 23-2x=70-7x | | 4w-11=5 | | 20=-5t | | 4x^2-28x+96=0 | | 4xy=7 | | 22p+9=6p-7 | | 51=-u+167 | | 5(-2)+3y=7 | | 2k-1=3 | | 60=-8x | | 14d+-15d=17 | | 39x-8y=99 | | 14x-13=-6x+9 | | 6a+18=37 | | 110-v=197 | | 3/50=12/x | | 16+7x=30 | | 16+7x= | | 3p-2p+3p+3p=14 | | 3(2x-12)=-2(x-4)+x | | 2/3x=28 | | F+3r=7r | | 32-1(x+6)=9x-4 |

Equations solver categories