5x-3(2x-9)=21

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Solution for 5x-3(2x-9)=21 equation:


Simplifying
5x + -3(2x + -9) = 21

Reorder the terms:
5x + -3(-9 + 2x) = 21
5x + (-9 * -3 + 2x * -3) = 21
5x + (27 + -6x) = 21

Reorder the terms:
27 + 5x + -6x = 21

Combine like terms: 5x + -6x = -1x
27 + -1x = 21

Solving
27 + -1x = 21

Solving for variable 'x'.

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

Add '-27' to each side of the equation.
27 + -27 + -1x = 21 + -27

Combine like terms: 27 + -27 = 0
0 + -1x = 21 + -27
-1x = 21 + -27

Combine like terms: 21 + -27 = -6
-1x = -6

Divide each side by '-1'.
x = 6

Simplifying
x = 6

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