20x-(5x+9)+(7-9x)=10

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Solution for 20x-(5x+9)+(7-9x)=10 equation:


Simplifying
20x + -1(5x + 9) + (7 + -9x) = 10

Reorder the terms:
20x + -1(9 + 5x) + (7 + -9x) = 10
20x + (9 * -1 + 5x * -1) + (7 + -9x) = 10
20x + (-9 + -5x) + (7 + -9x) = 10

Remove parenthesis around (7 + -9x)
20x + -9 + -5x + 7 + -9x = 10

Reorder the terms:
-9 + 7 + 20x + -5x + -9x = 10

Combine like terms: -9 + 7 = -2
-2 + 20x + -5x + -9x = 10

Combine like terms: 20x + -5x = 15x
-2 + 15x + -9x = 10

Combine like terms: 15x + -9x = 6x
-2 + 6x = 10

Solving
-2 + 6x = 10

Solving for variable 'x'.

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

Add '2' to each side of the equation.
-2 + 2 + 6x = 10 + 2

Combine like terms: -2 + 2 = 0
0 + 6x = 10 + 2
6x = 10 + 2

Combine like terms: 10 + 2 = 12
6x = 12

Divide each side by '6'.
x = 2

Simplifying
x = 2

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