(x+3)(3x+8)-3x(x+3)=

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Solution for (x+3)(3x+8)-3x(x+3)= equation:


Simplifying
(x + 3)(3x + 8) + -3x(x + 3) = 0

Reorder the terms:
(3 + x)(3x + 8) + -3x(x + 3) = 0

Reorder the terms:
(3 + x)(8 + 3x) + -3x(x + 3) = 0

Multiply (3 + x) * (8 + 3x)
(3(8 + 3x) + x(8 + 3x)) + -3x(x + 3) = 0
((8 * 3 + 3x * 3) + x(8 + 3x)) + -3x(x + 3) = 0
((24 + 9x) + x(8 + 3x)) + -3x(x + 3) = 0
(24 + 9x + (8 * x + 3x * x)) + -3x(x + 3) = 0
(24 + 9x + (8x + 3x2)) + -3x(x + 3) = 0

Combine like terms: 9x + 8x = 17x
(24 + 17x + 3x2) + -3x(x + 3) = 0

Reorder the terms:
24 + 17x + 3x2 + -3x(3 + x) = 0
24 + 17x + 3x2 + (3 * -3x + x * -3x) = 0
24 + 17x + 3x2 + (-9x + -3x2) = 0

Reorder the terms:
24 + 17x + -9x + 3x2 + -3x2 = 0

Combine like terms: 17x + -9x = 8x
24 + 8x + 3x2 + -3x2 = 0

Combine like terms: 3x2 + -3x2 = 0
24 + 8x + 0 = 0
24 + 8x = 0

Solving
24 + 8x = 0

Solving for variable 'x'.

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

Add '-24' to each side of the equation.
24 + -24 + 8x = 0 + -24

Combine like terms: 24 + -24 = 0
0 + 8x = 0 + -24
8x = 0 + -24

Combine like terms: 0 + -24 = -24
8x = -24

Divide each side by '8'.
x = -3

Simplifying
x = -3

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