(5x-15)+(4x-12)=0

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Solution for (5x-15)+(4x-12)=0 equation:


Simplifying
(5x + -15) + (4x + -12) = 0

Reorder the terms:
(-15 + 5x) + (4x + -12) = 0

Remove parenthesis around (-15 + 5x)
-15 + 5x + (4x + -12) = 0

Reorder the terms:
-15 + 5x + (-12 + 4x) = 0

Remove parenthesis around (-12 + 4x)
-15 + 5x + -12 + 4x = 0

Reorder the terms:
-15 + -12 + 5x + 4x = 0

Combine like terms: -15 + -12 = -27
-27 + 5x + 4x = 0

Combine like terms: 5x + 4x = 9x
-27 + 9x = 0

Solving
-27 + 9x = 0

Solving for variable 'x'.

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

Add '27' to each side of the equation.
-27 + 27 + 9x = 0 + 27

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

Combine like terms: 0 + 27 = 27
9x = 27

Divide each side by '9'.
x = 3

Simplifying
x = 3

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