a+3+7=13

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Solution for a+3+7=13 equation: 


Simplifying
a + 3 + 7 = 13

Reorder the terms:
3 + 7 + a = 13

Combine like terms: 3 + 7 = 10
10 + a = 13

Solving
10 + a = 13

Solving for variable 'a'.

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

Add '-10' to each side of the equation.
10 + -10 + a = 13 + -10

Combine like terms: 10 + -10 = 0
0 + a = 13 + -10
a = 13 + -10

Combine like terms: 13 + -10 = 3
a = 3

Simplifying
a = 3

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