-7a-7(a+4)=-6-3a

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Solution for -7a-7(a+4)=-6-3a equation:


Simplifying
-7a + -7(a + 4) = -6 + -3a

Reorder the terms:
-7a + -7(4 + a) = -6 + -3a
-7a + (4 * -7 + a * -7) = -6 + -3a
-7a + (-28 + -7a) = -6 + -3a

Reorder the terms:
-28 + -7a + -7a = -6 + -3a

Combine like terms: -7a + -7a = -14a
-28 + -14a = -6 + -3a

Solving
-28 + -14a = -6 + -3a

Solving for variable 'a'.

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

Add '3a' to each side of the equation.
-28 + -14a + 3a = -6 + -3a + 3a

Combine like terms: -14a + 3a = -11a
-28 + -11a = -6 + -3a + 3a

Combine like terms: -3a + 3a = 0
-28 + -11a = -6 + 0
-28 + -11a = -6

Add '28' to each side of the equation.
-28 + 28 + -11a = -6 + 28

Combine like terms: -28 + 28 = 0
0 + -11a = -6 + 28
-11a = -6 + 28

Combine like terms: -6 + 28 = 22
-11a = 22

Divide each side by '-11'.
a = -2

Simplifying
a = -2

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