10x-2(4x-4)+25-(-9)=

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Solution for 10x-2(4x-4)+25-(-9)= equation:


Simplifying
10x + -2(4x + -4) + 25 + -1(-9) = 0

Reorder the terms:
10x + -2(-4 + 4x) + 25 + -1(-9) = 0
10x + (-4 * -2 + 4x * -2) + 25 + -1(-9) = 0
10x + (8 + -8x) + 25 + -1(-9) = 0

Multiply -1 * -9
10x + 8 + -8x + 25 + 9 = 0

Reorder the terms:
8 + 25 + 9 + 10x + -8x = 0

Combine like terms: 8 + 25 = 33
33 + 9 + 10x + -8x = 0

Combine like terms: 33 + 9 = 42
42 + 10x + -8x = 0

Combine like terms: 10x + -8x = 2x
42 + 2x = 0

Solving
42 + 2x = 0

Solving for variable 'x'.

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

Add '-42' to each side of the equation.
42 + -42 + 2x = 0 + -42

Combine like terms: 42 + -42 = 0
0 + 2x = 0 + -42
2x = 0 + -42

Combine like terms: 0 + -42 = -42
2x = -42

Divide each side by '2'.
x = -21

Simplifying
x = -21

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