3(2x+7)=3(3x+9)

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Solution for 3(2x+7)=3(3x+9) equation:


Simplifying
3(2x + 7) = 3(3x + 9)

Reorder the terms:
3(7 + 2x) = 3(3x + 9)
(7 * 3 + 2x * 3) = 3(3x + 9)
(21 + 6x) = 3(3x + 9)

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

Solving
21 + 6x = 27 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
21 + 6x + -9x = 27 + 9x + -9x

Combine like terms: 6x + -9x = -3x
21 + -3x = 27 + 9x + -9x

Combine like terms: 9x + -9x = 0
21 + -3x = 27 + 0
21 + -3x = 27

Add '-21' to each side of the equation.
21 + -21 + -3x = 27 + -21

Combine like terms: 21 + -21 = 0
0 + -3x = 27 + -21
-3x = 27 + -21

Combine like terms: 27 + -21 = 6
-3x = 6

Divide each side by '-3'.
x = -2

Simplifying
x = -2

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