6a+9-3a+4(a+5)=

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Solution for 6a+9-3a+4(a+5)= equation:


Simplifying
6a + 9 + -3a + 4(a + 5) = 0

Reorder the terms:
6a + 9 + -3a + 4(5 + a) = 0
6a + 9 + -3a + (5 * 4 + a * 4) = 0
6a + 9 + -3a + (20 + 4a) = 0

Reorder the terms:
9 + 20 + 6a + -3a + 4a = 0

Combine like terms: 9 + 20 = 29
29 + 6a + -3a + 4a = 0

Combine like terms: 6a + -3a = 3a
29 + 3a + 4a = 0

Combine like terms: 3a + 4a = 7a
29 + 7a = 0

Solving
29 + 7a = 0

Solving for variable 'a'.

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

Add '-29' to each side of the equation.
29 + -29 + 7a = 0 + -29

Combine like terms: 29 + -29 = 0
0 + 7a = 0 + -29
7a = 0 + -29

Combine like terms: 0 + -29 = -29
7a = -29

Divide each side by '7'.
a = -4.142857143

Simplifying
a = -4.142857143

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