5(2x+1)-3(x+4)=21

Simple and best practice solution for 5(2x+1)-3(x+4)=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 5(2x+1)-3(x+4)=21 equation:


Simplifying
5(2x + 1) + -3(x + 4) = 21

Reorder the terms:
5(1 + 2x) + -3(x + 4) = 21
(1 * 5 + 2x * 5) + -3(x + 4) = 21
(5 + 10x) + -3(x + 4) = 21

Reorder the terms:
5 + 10x + -3(4 + x) = 21
5 + 10x + (4 * -3 + x * -3) = 21
5 + 10x + (-12 + -3x) = 21

Reorder the terms:
5 + -12 + 10x + -3x = 21

Combine like terms: 5 + -12 = -7
-7 + 10x + -3x = 21

Combine like terms: 10x + -3x = 7x
-7 + 7x = 21

Solving
-7 + 7x = 21

Solving for variable 'x'.

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

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

Combine like terms: -7 + 7 = 0
0 + 7x = 21 + 7
7x = 21 + 7

Combine like terms: 21 + 7 = 28
7x = 28

Divide each side by '7'.
x = 4

Simplifying
x = 4

See similar equations:

| 2x+-8=12 | | -6b-11=5-2b | | -5x+6x=0 | | 1y=1(-3x+7) | | 40c=90 | | 1-6x=x-76 | | 2.4(20x-10)+2=-2(.5x+6) | | 10+2x+3x=40 | | 1-4n+2n-1=0 | | x-6=2+3x | | 25x+1150=y | | 1n+2=2 | | 1-8x+1+3x=0 | | 7(x-3)+2x-5=6 | | -5x(-5)-15y=50 | | x+7=1/4(8x-12) | | -5x(-5)-15y=40 | | 4+8+x=-3 | | 3x+6+5x=-18 | | x+5=2x-4+9-x | | x-9-3x=0 | | -5x-8y=40 | | 5-3x=42-6x | | 5(x-1)+3yi=-15i-20 | | 7=-3x+4x-4 | | 2MX^2(m-4)x-2=0 | | b-7+b-8=0 | | 4x+5-3x=-5 | | 210=6(3k+7)+6k | | 2x-(5x-13)=57 | | -5=-2x+3x-10 | | x-5=29-3x |

Equations solver categories