x-a=4

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Solution for x-a=4 equation:


Simplifying
x + -1a = 4

Reorder the terms:
-1a + x = 4

Solving
-1a + x = 4

Solving for variable 'a'.

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

Add '-1x' to each side of the equation.
-1a + x + -1x = 4 + -1x

Combine like terms: x + -1x = 0
-1a + 0 = 4 + -1x
-1a = 4 + -1x

Divide each side by '-1'.
a = -4 + x

Simplifying
a = -4 + x

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