9(x-a)=3(a-x)

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Solution for 9(x-a)=3(a-x) equation:


Simplifying
9(x + -1a) = 3(a + -1x)

Reorder the terms:
9(-1a + x) = 3(a + -1x)
(-1a * 9 + x * 9) = 3(a + -1x)
(-9a + 9x) = 3(a + -1x)
-9a + 9x = (a * 3 + -1x * 3)
-9a + 9x = (3a + -3x)

Solving
-9a + 9x = 3a + -3x

Solving for variable 'a'.

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

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

Combine like terms: -9a + -3a = -12a
-12a + 9x = 3a + -3a + -3x

Combine like terms: 3a + -3a = 0
-12a + 9x = 0 + -3x
-12a + 9x = -3x

Add '-9x' to each side of the equation.
-12a + 9x + -9x = -3x + -9x

Combine like terms: 9x + -9x = 0
-12a + 0 = -3x + -9x
-12a = -3x + -9x

Combine like terms: -3x + -9x = -12x
-12a = -12x

Divide each side by '-12'.
a = x

Simplifying
a = x

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