3a(4+5)+(4+7)+19-5+3a=

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Solution for 3a(4+5)+(4+7)+19-5+3a= equation:


Simplifying
3a(4 + 5) + (4 + 7) + 19 + -5 + 3a = 0

Combine like terms: 4 + 5 = 9
3a(9) + (4 + 7) + 19 + -5 + 3a = 0

Reorder the terms for easier multiplication:
3 * 9a + (4 + 7) + 19 + -5 + 3a = 0

Multiply 3 * 9
27a + (4 + 7) + 19 + -5 + 3a = 0

Combine like terms: 4 + 7 = 11
27a + (11) + 19 + -5 + 3a = 0
27a + 11 + 19 + -5 + 3a = 0

Reorder the terms:
11 + 19 + -5 + 27a + 3a = 0

Combine like terms: 11 + 19 = 30
30 + -5 + 27a + 3a = 0

Combine like terms: 30 + -5 = 25
25 + 27a + 3a = 0

Combine like terms: 27a + 3a = 30a
25 + 30a = 0

Solving
25 + 30a = 0

Solving for variable 'a'.

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

Add '-25' to each side of the equation.
25 + -25 + 30a = 0 + -25

Combine like terms: 25 + -25 = 0
0 + 30a = 0 + -25
30a = 0 + -25

Combine like terms: 0 + -25 = -25
30a = -25

Divide each side by '30'.
a = -0.8333333333

Simplifying
a = -0.8333333333

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