3(3x+12y-40)=0

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Solution for 3(3x+12y-40)=0 equation:


Simplifying
3(3x + 12y + -40) = 0

Reorder the terms:
3(-40 + 3x + 12y) = 0
(-40 * 3 + 3x * 3 + 12y * 3) = 0
(-120 + 9x + 36y) = 0

Solving
-120 + 9x + 36y = 0

Solving for variable 'x'.

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

Add '120' to each side of the equation.
-120 + 9x + 120 + 36y = 0 + 120

Reorder the terms:
-120 + 120 + 9x + 36y = 0 + 120

Combine like terms: -120 + 120 = 0
0 + 9x + 36y = 0 + 120
9x + 36y = 0 + 120

Combine like terms: 0 + 120 = 120
9x + 36y = 120

Add '-36y' to each side of the equation.
9x + 36y + -36y = 120 + -36y

Combine like terms: 36y + -36y = 0
9x + 0 = 120 + -36y
9x = 120 + -36y

Divide each side by '9'.
x = 13.33333333 + -4y

Simplifying
x = 13.33333333 + -4y

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