1a+3a=3a+x

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Solution for 1a+3a=3a+x equation: 


Simplifying
1a + 3a = 3a + x

Combine like terms: 1a + 3a = 4a
4a = 3a + x

Solving
4a = 3a + x

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.
4a + -3a = 3a + -3a + x

Combine like terms: 4a + -3a = 1a
1a = 3a + -3a + x

Combine like terms: 3a + -3a = 0
1a = 0 + x
1a = x

Divide each side by '1'.
a = x

Simplifying
a = x

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