3x+ax=12

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Solution for 3x+ax=12 equation: 


Simplifying
3x + ax = 12

Reorder the terms:
ax + 3x = 12

Solving
ax + 3x = 12

Solving for variable 'a'.

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

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

Combine like terms: 3x + -3x = 0
ax + 0 = 12 + -3x
ax = 12 + -3x

Divide each side by 'x'.
a = 12x-1 + -3

Simplifying
a = 12x-1 + -3

Reorder the terms:
a = -3 + 12x-1

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