3(3x+4)+9=4x+4

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Solution for 3(3x+4)+9=4x+4 equation:


Simplifying
3(3x + 4) + 9 = 4x + 4

Reorder the terms:
3(4 + 3x) + 9 = 4x + 4
(4 * 3 + 3x * 3) + 9 = 4x + 4
(12 + 9x) + 9 = 4x + 4

Reorder the terms:
12 + 9 + 9x = 4x + 4

Combine like terms: 12 + 9 = 21
21 + 9x = 4x + 4

Reorder the terms:
21 + 9x = 4 + 4x

Solving
21 + 9x = 4 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
21 + 9x + -4x = 4 + 4x + -4x

Combine like terms: 9x + -4x = 5x
21 + 5x = 4 + 4x + -4x

Combine like terms: 4x + -4x = 0
21 + 5x = 4 + 0
21 + 5x = 4

Add '-21' to each side of the equation.
21 + -21 + 5x = 4 + -21

Combine like terms: 21 + -21 = 0
0 + 5x = 4 + -21
5x = 4 + -21

Combine like terms: 4 + -21 = -17
5x = -17

Divide each side by '5'.
x = -3.4

Simplifying
x = -3.4

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