3x+(x-12)+x-6=300

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Solution for 3x+(x-12)+x-6=300 equation:


Simplifying
3x + (x + -12) + x + -6 = 300

Reorder the terms:
3x + (-12 + x) + x + -6 = 300

Remove parenthesis around (-12 + x)
3x + -12 + x + x + -6 = 300

Reorder the terms:
-12 + -6 + 3x + x + x = 300

Combine like terms: -12 + -6 = -18
-18 + 3x + x + x = 300

Combine like terms: 3x + x = 4x
-18 + 4x + x = 300

Combine like terms: 4x + x = 5x
-18 + 5x = 300

Solving
-18 + 5x = 300

Solving for variable 'x'.

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

Add '18' to each side of the equation.
-18 + 18 + 5x = 300 + 18

Combine like terms: -18 + 18 = 0
0 + 5x = 300 + 18
5x = 300 + 18

Combine like terms: 300 + 18 = 318
5x = 318

Divide each side by '5'.
x = 63.6

Simplifying
x = 63.6

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