12(3x+15)+9=45

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Solution for 12(3x+15)+9=45 equation:


Simplifying
12(3x + 15) + 9 = 45

Reorder the terms:
12(15 + 3x) + 9 = 45
(15 * 12 + 3x * 12) + 9 = 45
(180 + 36x) + 9 = 45

Reorder the terms:
180 + 9 + 36x = 45

Combine like terms: 180 + 9 = 189
189 + 36x = 45

Solving
189 + 36x = 45

Solving for variable 'x'.

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

Add '-189' to each side of the equation.
189 + -189 + 36x = 45 + -189

Combine like terms: 189 + -189 = 0
0 + 36x = 45 + -189
36x = 45 + -189

Combine like terms: 45 + -189 = -144
36x = -144

Divide each side by '36'.
x = -4

Simplifying
x = -4

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