5(x-6)+9=21

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Solution for 5(x-6)+9=21 equation:


Simplifying
5(x + -6) + 9 = 21

Reorder the terms:
5(-6 + x) + 9 = 21
(-6 * 5 + x * 5) + 9 = 21
(-30 + 5x) + 9 = 21

Reorder the terms:
-30 + 9 + 5x = 21

Combine like terms: -30 + 9 = -21
-21 + 5x = 21

Solving
-21 + 5x = 21

Solving for variable 'x'.

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

Add '21' to each side of the equation.
-21 + 21 + 5x = 21 + 21

Combine like terms: -21 + 21 = 0
0 + 5x = 21 + 21
5x = 21 + 21

Combine like terms: 21 + 21 = 42
5x = 42

Divide each side by '5'.
x = 8.4

Simplifying
x = 8.4

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