3(4x+7)=21

Simple and best practice solution for 3(4x+7)=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 3(4x+7)=21 equation: 


Simplifying
3(4x + 7) = 21

Reorder the terms:
3(7 + 4x) = 21
(7 * 3 + 4x * 3) = 21
(21 + 12x) = 21

Add '-21' to each side of the equation.
21 + -21 + 12x = 21 + -21

Combine like terms: 21 + -21 = 0
0 + 12x = 21 + -21
12x = 21 + -21

Combine like terms: 21 + -21 = 0
12x = 0

Solving
12x = 0

Solving for variable 'x'.

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

Divide each side by '12'.
x = 0

Simplifying
x = 0

See similar equations:

| K^2-3k+1=5 | | -4.33=q-3.33 | | a=30000-1200(10) | | 8x(2x-1)=0 | | 7x^2-1=-2x | | -85+3x=-4x+104 | | 7.75=a-16.187 | | 01/5(10h+15)+h | | 7(w+5)=9w+23 | | 3(5-2n)=7n-24 | | (3x-5)(x^2-6x+4)= | | -14=3w-8 | | 35x^2+x-12=0 | | 5y+2x=410 | | y-3/y^2-y+3/2y | | 35x+100=415 | | 2x+5y=410 | | -12b+4=52 | | 3211=16t^2 | | x(2)-x^2-5x-25=0 | | 2x+7x+10=0 | | 3=7n+6-3 | | (8x+9y)(8x-9y)= | | x/2+3x/4=-9 | | 6d+7=19 | | 24w^6+24w^3=0 | | 11X-2=72 | | 5-p=20 | | 3=m-[-2] | | 6x+2(-4x-16)=-54 | | -64-25-9= | | 14=-7a |

Equations solver categories