13-a+5a=4

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Solution for 13-a+5a=4 equation: 


Simplifying
13 + -1a + 5a = 4

Combine like terms: -1a + 5a = 4a
13 + 4a = 4

Solving
13 + 4a = 4

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 = 4 + -13

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

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

Divide each side by '4'.
a = -2.25

Simplifying
a = -2.25

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