(4+5)+9=4+(x+9)

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Solution for (4+5)+9=4+(x+9) equation:


Simplifying
(4 + 5) + 9 = 4 + (x + 9)

Combine like terms: 4 + 5 = 9
(9) + 9 = 4 + (x + 9)
9 + 9 = 4 + (x + 9)

Combine like terms: 9 + 9 = 18
18 = 4 + (x + 9)

Reorder the terms:
18 = 4 + (9 + x)

Remove parenthesis around (9 + x)
18 = 4 + 9 + x

Combine like terms: 4 + 9 = 13
18 = 13 + x

Solving
18 = 13 + 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.
18 + -1x = 13 + x + -1x

Combine like terms: x + -1x = 0
18 + -1x = 13 + 0
18 + -1x = 13

Add '-18' to each side of the equation.
18 + -18 + -1x = 13 + -18

Combine like terms: 18 + -18 = 0
0 + -1x = 13 + -18
-1x = 13 + -18

Combine like terms: 13 + -18 = -5
-1x = -5

Divide each side by '-1'.
x = 5

Simplifying
x = 5

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