4a+13=9

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Solution for 4a+13=9 equation: 


Simplifying
4a + 13 = 9

Reorder the terms:
13 + 4a = 9

Solving
13 + 4a = 9

Solving for variable 'a'.

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

Add '-13' to each side of the equation.
13 + -13 + 4a = 9 + -13

Combine like terms: 13 + -13 = 0
0 + 4a = 9 + -13
4a = 9 + -13

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

Divide each side by '4'.
a = -1

Simplifying
a = -1

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