3a+4a+9-4=

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Solution for 3a+4a+9-4= equation:


Simplifying
3a + 4a + 9 + -4 = 0

Reorder the terms:
9 + -4 + 3a + 4a = 0

Combine like terms: 9 + -4 = 5
5 + 3a + 4a = 0

Combine like terms: 3a + 4a = 7a
5 + 7a = 0

Solving
5 + 7a = 0

Solving for variable 'a'.

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

Add '-5' to each side of the equation.
5 + -5 + 7a = 0 + -5

Combine like terms: 5 + -5 = 0
0 + 7a = 0 + -5
7a = 0 + -5

Combine like terms: 0 + -5 = -5
7a = -5

Divide each side by '7'.
a = -0.7142857143

Simplifying
a = -0.7142857143

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