17x-(5x-9)=21

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Solution for 17x-(5x-9)=21 equation:


Simplifying
17x + -1(5x + -9) = 21

Reorder the terms:
17x + -1(-9 + 5x) = 21
17x + (-9 * -1 + 5x * -1) = 21
17x + (9 + -5x) = 21

Reorder the terms:
9 + 17x + -5x = 21

Combine like terms: 17x + -5x = 12x
9 + 12x = 21

Solving
9 + 12x = 21

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + 12x = 21 + -9

Combine like terms: 9 + -9 = 0
0 + 12x = 21 + -9
12x = 21 + -9

Combine like terms: 21 + -9 = 12
12x = 12

Divide each side by '12'.
x = 1

Simplifying
x = 1

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