4x-9x(x+1)=20-5x

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Solution for 4x-9x(x+1)=20-5x equation:


Simplifying
4x + -9x(x + 1) = 20 + -5x

Reorder the terms:
4x + -9x(1 + x) = 20 + -5x
4x + (1 * -9x + x * -9x) = 20 + -5x
4x + (-9x + -9x2) = 20 + -5x

Combine like terms: 4x + -9x = -5x
-5x + -9x2 = 20 + -5x

Add '5x' to each side of the equation.
-5x + 5x + -9x2 = 20 + -5x + 5x

Combine like terms: -5x + 5x = 0
0 + -9x2 = 20 + -5x + 5x
-9x2 = 20 + -5x + 5x

Combine like terms: -5x + 5x = 0
-9x2 = 20 + 0
-9x2 = 20

Solving
-9x2 = 20

Solving for variable 'x'.

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

Divide each side by '-9'.
x2 = -2.222222222

Simplifying
x2 = -2.222222222

Reorder the terms:
2.222222222 + x2 = -2.222222222 + 2.222222222

Combine like terms: -2.222222222 + 2.222222222 = 0.000000000
2.222222222 + x2 = 0.000000000

The solution to this equation could not be determined.

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