1a-4=123

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Solution for 1a-4=123 equation: 


Simplifying
1a + -4 = 123

Reorder the terms:
-4 + 1a = 123

Solving
-4 + 1a = 123

Solving for variable 'a'.

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

Add '4' to each side of the equation.
-4 + 4 + 1a = 123 + 4

Combine like terms: -4 + 4 = 0
0 + 1a = 123 + 4
1a = 123 + 4

Combine like terms: 123 + 4 = 127
1a = 127

Divide each side by '1'.
a = 127

Simplifying
a = 127

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