x(x+10)=(x+2)(x+7)

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Solution for x(x+10)=(x+2)(x+7) equation:


Simplifying
x(x + 10) = (x + 2)(x + 7)

Reorder the terms:
x(10 + x) = (x + 2)(x + 7)
(10 * x + x * x) = (x + 2)(x + 7)
(10x + x2) = (x + 2)(x + 7)

Reorder the terms:
10x + x2 = (2 + x)(x + 7)

Reorder the terms:
10x + x2 = (2 + x)(7 + x)

Multiply (2 + x) * (7 + x)
10x + x2 = (2(7 + x) + x(7 + x))
10x + x2 = ((7 * 2 + x * 2) + x(7 + x))
10x + x2 = ((14 + 2x) + x(7 + x))
10x + x2 = (14 + 2x + (7 * x + x * x))
10x + x2 = (14 + 2x + (7x + x2))

Combine like terms: 2x + 7x = 9x
10x + x2 = (14 + 9x + x2)

Add '-1x2' to each side of the equation.
10x + x2 + -1x2 = 14 + 9x + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
10x + 0 = 14 + 9x + x2 + -1x2
10x = 14 + 9x + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
10x = 14 + 9x + 0
10x = 14 + 9x

Solving
10x = 14 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
10x + -9x = 14 + 9x + -9x

Combine like terms: 10x + -9x = 1x
1x = 14 + 9x + -9x

Combine like terms: 9x + -9x = 0
1x = 14 + 0
1x = 14

Divide each side by '1'.
x = 14

Simplifying
x = 14

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