57-x-3(x+3)=0

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Solution for 57-x-3(x+3)=0 equation: 


Simplifying
57 + -1x + -3(x + 3) = 0

Reorder the terms:
57 + -1x + -3(3 + x) = 0
57 + -1x + (3 * -3 + x * -3) = 0
57 + -1x + (-9 + -3x) = 0

Reorder the terms:
57 + -9 + -1x + -3x = 0

Combine like terms: 57 + -9 = 48
48 + -1x + -3x = 0

Combine like terms: -1x + -3x = -4x
48 + -4x = 0

Solving
48 + -4x = 0

Solving for variable 'x'.

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

Add '-48' to each side of the equation.
48 + -48 + -4x = 0 + -48

Combine like terms: 48 + -48 = 0
0 + -4x = 0 + -48
-4x = 0 + -48

Combine like terms: 0 + -48 = -48
-4x = -48

Divide each side by '-4'.
x = 12

Simplifying
x = 12

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