3x=.50(12+[x+3])

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Solution for 3x=.50(12+[x+3]) equation:


Simplifying
3x = 0.50(12 + [x + 3])

Reorder the terms:
3x = 0.50(12 + [3 + x])

Remove brackets around [3 + x]
3x = 0.50(12 + 3 + x)

Combine like terms: 12 + 3 = 15
3x = 0.50(15 + x)
3x = (15 * 0.50 + x * 0.50)
3x = (7.5 + 0.50x)

Solving
3x = 7.5 + 0.50x

Solving for variable 'x'.

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

Add '-0.50x' to each side of the equation.
3x + -0.50x = 7.5 + 0.50x + -0.50x

Combine like terms: 3x + -0.50x = 2.5x
2.5x = 7.5 + 0.50x + -0.50x

Combine like terms: 0.50x + -0.50x = 0.00
2.5x = 7.5 + 0.00
2.5x = 7.5

Divide each side by '2.5'.
x = 3

Simplifying
x = 3

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