-7a-4(-4a-7)=

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Solution for -7a-4(-4a-7)= equation:


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

Reorder the terms:
-7a + -4(-7 + -4a) = 0
-7a + (-7 * -4 + -4a * -4) = 0
-7a + (28 + 16a) = 0

Reorder the terms:
28 + -7a + 16a = 0

Combine like terms: -7a + 16a = 9a
28 + 9a = 0

Solving
28 + 9a = 0

Solving for variable 'a'.

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

Add '-28' to each side of the equation.
28 + -28 + 9a = 0 + -28

Combine like terms: 28 + -28 = 0
0 + 9a = 0 + -28
9a = 0 + -28

Combine like terms: 0 + -28 = -28
9a = -28

Divide each side by '9'.
a = -3.111111111

Simplifying
a = -3.111111111

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