1a+7=12

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Solution for 1a+7=12 equation: 


Simplifying
1a + 7 = 12

Reorder the terms:
7 + 1a = 12

Solving
7 + 1a = 12

Solving for variable 'a'.

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

Add '-7' to each side of the equation.
7 + -7 + 1a = 12 + -7

Combine like terms: 7 + -7 = 0
0 + 1a = 12 + -7
1a = 12 + -7

Combine like terms: 12 + -7 = 5
1a = 5

Divide each side by '1'.
a = 5

Simplifying
a = 5

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