9a-3(4-x)=20

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Solution for 9a-3(4-x)=20 equation:


Simplifying
9a + -3(4 + -1x) = 20
9a + (4 * -3 + -1x * -3) = 20
9a + (-12 + 3x) = 20

Reorder the terms:
-12 + 9a + 3x = 20

Solving
-12 + 9a + 3x = 20

Solving for variable 'a'.

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

Add '12' to each side of the equation.
-12 + 9a + 12 + 3x = 20 + 12

Reorder the terms:
-12 + 12 + 9a + 3x = 20 + 12

Combine like terms: -12 + 12 = 0
0 + 9a + 3x = 20 + 12
9a + 3x = 20 + 12

Combine like terms: 20 + 12 = 32
9a + 3x = 32

Add '-3x' to each side of the equation.
9a + 3x + -3x = 32 + -3x

Combine like terms: 3x + -3x = 0
9a + 0 = 32 + -3x
9a = 32 + -3x

Divide each side by '9'.
a = 3.555555556 + -0.3333333333x

Simplifying
a = 3.555555556 + -0.3333333333x

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