3+15-9=2(x+2)

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Solution for 3+15-9=2(x+2) equation:


Simplifying
3 + 15 + -9 = 2(x + 2)

Combine like terms: 3 + 15 = 18
18 + -9 = 2(x + 2)

Combine like terms: 18 + -9 = 9
9 = 2(x + 2)

Reorder the terms:
9 = 2(2 + x)
9 = (2 * 2 + x * 2)
9 = (4 + 2x)

Solving
9 = 4 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
9 + -2x = 4 + 2x + -2x

Combine like terms: 2x + -2x = 0
9 + -2x = 4 + 0
9 + -2x = 4

Add '-9' to each side of the equation.
9 + -9 + -2x = 4 + -9

Combine like terms: 9 + -9 = 0
0 + -2x = 4 + -9
-2x = 4 + -9

Combine like terms: 4 + -9 = -5
-2x = -5

Divide each side by '-2'.
x = 2.5

Simplifying
x = 2.5

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