3x+9=(10+x)

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Solution for 3x+9=(10+x) equation:


Simplifying
3x + 9 = (10 + x)

Reorder the terms:
9 + 3x = (10 + x)

Remove parenthesis around (10 + x)
9 + 3x = 10 + x

Solving
9 + 3x = 10 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
9 + 3x + -1x = 10 + x + -1x

Combine like terms: 3x + -1x = 2x
9 + 2x = 10 + x + -1x

Combine like terms: x + -1x = 0
9 + 2x = 10 + 0
9 + 2x = 10

Add '-9' to each side of the equation.
9 + -9 + 2x = 10 + -9

Combine like terms: 9 + -9 = 0
0 + 2x = 10 + -9
2x = 10 + -9

Combine like terms: 10 + -9 = 1
2x = 1

Divide each side by '2'.
x = 0.5

Simplifying
x = 0.5

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