6+3(x-5)=21

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Solution for 6+3(x-5)=21 equation: 


Simplifying
6 + 3(x + -5) = 21

Reorder the terms:
6 + 3(-5 + x) = 21
6 + (-5 * 3 + x * 3) = 21
6 + (-15 + 3x) = 21

Combine like terms: 6 + -15 = -9
-9 + 3x = 21

Solving
-9 + 3x = 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 + 3x = 21 + 9

Combine like terms: -9 + 9 = 0
0 + 3x = 21 + 9
3x = 21 + 9

Combine like terms: 21 + 9 = 30
3x = 30

Divide each side by '3'.
x = 10

Simplifying
x = 10

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