6x=3(5x+21)

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


Simplifying
6x = 3(5x + 21)

Reorder the terms:
6x = 3(21 + 5x)
6x = (21 * 3 + 5x * 3)
6x = (63 + 15x)

Solving
6x = 63 + 15x

Solving for variable 'x'.

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

Add '-15x' to each side of the equation.
6x + -15x = 63 + 15x + -15x

Combine like terms: 6x + -15x = -9x
-9x = 63 + 15x + -15x

Combine like terms: 15x + -15x = 0
-9x = 63 + 0
-9x = 63

Divide each side by '-9'.
x = -7

Simplifying
x = -7

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