3a+(4+7a)=

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


Simplifying
3a + (4 + 7a) = 0

Remove parenthesis around (4 + 7a)
3a + 4 + 7a = 0

Reorder the terms:
4 + 3a + 7a = 0

Combine like terms: 3a + 7a = 10a
4 + 10a = 0

Solving
4 + 10a = 0

Solving for variable 'a'.

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

Add '-4' to each side of the equation.
4 + -4 + 10a = 0 + -4

Combine like terms: 4 + -4 = 0
0 + 10a = 0 + -4
10a = 0 + -4

Combine like terms: 0 + -4 = -4
10a = -4

Divide each side by '10'.
a = -0.4

Simplifying
a = -0.4

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