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

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


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

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

Reorder the terms:
15 + 3x = 21 + -4(5 + x)
15 + 3x = 21 + (5 * -4 + x * -4)
15 + 3x = 21 + (-20 + -4x)

Combine like terms: 21 + -20 = 1
15 + 3x = 1 + -4x

Solving
15 + 3x = 1 + -4x

Solving for variable 'x'.

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

Add '4x' to each side of the equation.
15 + 3x + 4x = 1 + -4x + 4x

Combine like terms: 3x + 4x = 7x
15 + 7x = 1 + -4x + 4x

Combine like terms: -4x + 4x = 0
15 + 7x = 1 + 0
15 + 7x = 1

Add '-15' to each side of the equation.
15 + -15 + 7x = 1 + -15

Combine like terms: 15 + -15 = 0
0 + 7x = 1 + -15
7x = 1 + -15

Combine like terms: 1 + -15 = -14
7x = -14

Divide each side by '7'.
x = -2

Simplifying
x = -2

See similar equations:

| 15+5x=75 | | 7-7x=-7 | | 4.5(2(116)+(9-1)-25)=y | | 60=8x-12 | | 1-4x=-55 | | 6+5x=36 | | 100y=0.20+26 | | 4x-15=-3 | | Xy+6=12 | | 5x^3+2x^2-15x-6=0 | | 50y=0.20x+26 | | 8(2+3x)=4 | | 10d+8=6d+12 | | 2(x-2)=4 | | 11x=8x-x | | 5x-6=10x-19 | | 5(a+2)=32 | | 4n-7=10 | | -7.2=9c-9 | | 5(x+10)=15 | | 5e-8=39 | | y-2=7 | | 8(3-x)=15 | | 4p=6.8 | | 5(2-g)= | | 8(2x-3)=15 | | (2x)*0.8=2.4 | | 8(2x-3)=25 | | 9n-21=51 | | Xy=12 | | 5n-14=21 | | 90x-30=496 |

Equations solver categories