408=x+7+x+5+x

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Solution for 408=x+7+x+5+x equation:


Simplifying
408 = x + 7 + x + 5 + x

Reorder the terms:
408 = 7 + 5 + x + x + x

Combine like terms: 7 + 5 = 12
408 = 12 + x + x + x

Combine like terms: x + x = 2x
408 = 12 + 2x + x

Combine like terms: 2x + x = 3x
408 = 12 + 3x

Solving
408 = 12 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
408 + -3x = 12 + 3x + -3x

Combine like terms: 3x + -3x = 0
408 + -3x = 12 + 0
408 + -3x = 12

Add '-408' to each side of the equation.
408 + -408 + -3x = 12 + -408

Combine like terms: 408 + -408 = 0
0 + -3x = 12 + -408
-3x = 12 + -408

Combine like terms: 12 + -408 = -396
-3x = -396

Divide each side by '-3'.
x = 132

Simplifying
x = 132

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