3(4x+5)=21

Simple and best practice solution for 3(4x+5)=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+5)=21 equation:


Simplifying
3(4x + 5) = 21

Reorder the terms:
3(5 + 4x) = 21
(5 * 3 + 4x * 3) = 21
(15 + 12x) = 21

Solving
15 + 12x = 21

Solving for variable 'x'.

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

Add '-15' to each side of the equation.
15 + -15 + 12x = 21 + -15

Combine like terms: 15 + -15 = 0
0 + 12x = 21 + -15
12x = 21 + -15

Combine like terms: 21 + -15 = 6
12x = 6

Divide each side by '12'.
x = 0.5

Simplifying
x = 0.5

See similar equations:

| 2(3x-1)=11+(8-x) | | 10(x+2)+6=96 | | 3x-5=12-4x | | 5x^2=41x-8 | | 13+3(4r-3)=-8 | | 35x^2y-21xy-28x= | | 3888.21=12.117x^2-233.406x+1765.675 | | 2x^2+24=x^2-11x | | 42+73+137= | | 11x-6x-6=20-8x | | x^2-4x-77= | | 18-2(3p+5)=136+4(p-2) | | 5p-6=-31 | | cx+ax=b | | 6y+2-4y=-18 | | y-4=-7(x+2) | | 27pq+45p^2= | | H-2h+4=10 | | -3xy^2(6xy^2+6xy-3x)= | | 2h+h+4=10 | | X^3-7x^2+9x-63=0 | | x+x+8= | | 12+3(2y-5)=25+4y | | m+8n-5m-3n= | | P-6=24-2P | | 2x+24=0.285 | | -ax=b | | 2x+24=0.28 | | 8x+65-5x-75=35-63x | | 3x^4+9x^2+6=0 | | s=(4000)+71 | | 120overn=10 |

Equations solver categories