(20-x)(x)=(x+4)(12-x)

Simple and best practice solution for (20-x)(x)=(x+4)(12-x) 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 (20-x)(x)=(x+4)(12-x) equation:


Simplifying
(20 + -1x)(x) = (x + 4)(12 + -1x)

Reorder the terms for easier multiplication:
x(20 + -1x) = (x + 4)(12 + -1x)
(20 * x + -1x * x) = (x + 4)(12 + -1x)
(20x + -1x2) = (x + 4)(12 + -1x)

Reorder the terms:
20x + -1x2 = (4 + x)(12 + -1x)

Multiply (4 + x) * (12 + -1x)
20x + -1x2 = (4(12 + -1x) + x(12 + -1x))
20x + -1x2 = ((12 * 4 + -1x * 4) + x(12 + -1x))
20x + -1x2 = ((48 + -4x) + x(12 + -1x))
20x + -1x2 = (48 + -4x + (12 * x + -1x * x))
20x + -1x2 = (48 + -4x + (12x + -1x2))

Combine like terms: -4x + 12x = 8x
20x + -1x2 = (48 + 8x + -1x2)

Add 'x2' to each side of the equation.
20x + -1x2 + x2 = 48 + 8x + -1x2 + x2

Combine like terms: -1x2 + x2 = 0
20x + 0 = 48 + 8x + -1x2 + x2
20x = 48 + 8x + -1x2 + x2

Combine like terms: -1x2 + x2 = 0
20x = 48 + 8x + 0
20x = 48 + 8x

Solving
20x = 48 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
20x + -8x = 48 + 8x + -8x

Combine like terms: 20x + -8x = 12x
12x = 48 + 8x + -8x

Combine like terms: 8x + -8x = 0
12x = 48 + 0
12x = 48

Divide each side by '12'.
x = 4

Simplifying
x = 4

See similar equations:

| (y-7)-(y+5)=4y | | X(x^2+4x+4)=0 | | 4(a-4)=8(a+5) | | 10x^2-5x=8 | | 6+7=67 | | .25x+7=16 | | d/4=5/3 | | 2(x-2)+6=5(x+4) | | 3k-11=7k+9 | | 2(x-2)+6=5(z+4) | | -15x(x+6)=120 | | -15+x^2=2x | | 4n^2-11n=11 | | 15x^2+90=0 | | 5y+9(15)=3y | | (2x+3)(2x-7)=-16 | | 4n^2+-11n=11 | | X^2+2xy-2y-1=0 | | 3-2i/4-5i | | 4x-13=-9-13x | | 4n-11n=11 | | Log(13x+2)=1+log(x+8) | | 143-p^2=0 | | x-12=x/5 | | 0.7x+(x-3)=0.2x+3 | | X^2+2xy-2xy-1=0 | | 1.6*-1/0.8 | | 6x-14=10-2x | | 3x+2y-4x+5y= | | 3(z-2)=7z+4 | | -0.8t^2+8t-19.2=0 | | 27a^6b/45a^3b^4 |

Equations solver categories