4-(x+9)=a

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Solution for 4-(x+9)=a equation:


Simplifying
4 + -1(x + 9) = a

Reorder the terms:
4 + -1(9 + x) = a
4 + (9 * -1 + x * -1) = a
4 + (-9 + -1x) = a

Combine like terms: 4 + -9 = -5
-5 + -1x = a

Solving
-5 + -1x = a

Solving for variable 'x'.

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

Add '5' to each side of the equation.
-5 + 5 + -1x = 5 + a

Combine like terms: -5 + 5 = 0
0 + -1x = 5 + a
-1x = 5 + a

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

Simplifying
x = -5 + -1a

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