30=9x+5(12-3x)

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Solution for 30=9x+5(12-3x) equation:


Simplifying
30 = 9x + 5(12 + -3x)
30 = 9x + (12 * 5 + -3x * 5)
30 = 9x + (60 + -15x)

Reorder the terms:
30 = 60 + 9x + -15x

Combine like terms: 9x + -15x = -6x
30 = 60 + -6x

Solving
30 = 60 + -6x

Solving for variable 'x'.

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

Add '6x' to each side of the equation.
30 + 6x = 60 + -6x + 6x

Combine like terms: -6x + 6x = 0
30 + 6x = 60 + 0
30 + 6x = 60

Add '-30' to each side of the equation.
30 + -30 + 6x = 60 + -30

Combine like terms: 30 + -30 = 0
0 + 6x = 60 + -30
6x = 60 + -30

Combine like terms: 60 + -30 = 30
6x = 30

Divide each side by '6'.
x = 5

Simplifying
x = 5

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