4+3a=13

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Solution for 4+3a=13 equation: 


Simplifying
4 + 3a = 13

Solving
4 + 3a = 13

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 + 3a = 13 + -4

Combine like terms: 4 + -4 = 0
0 + 3a = 13 + -4
3a = 13 + -4

Combine like terms: 13 + -4 = 9
3a = 9

Divide each side by '3'.
a = 3

Simplifying
a = 3

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