-6a+28=-7(a+4)-7a

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Solution for -6a+28=-7(a+4)-7a equation:


Simplifying
-6a + 28 = -7(a + 4) + -7a

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

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

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

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

Solving for variable 'a'.

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

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

Combine like terms: -6a + 14a = 8a
28 + 8a = -28 + -14a + 14a

Combine like terms: -14a + 14a = 0
28 + 8a = -28 + 0
28 + 8a = -28

Add '-28' to each side of the equation.
28 + -28 + 8a = -28 + -28

Combine like terms: 28 + -28 = 0
0 + 8a = -28 + -28
8a = -28 + -28

Combine like terms: -28 + -28 = -56
8a = -56

Divide each side by '8'.
a = -7

Simplifying
a = -7

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