4a-7(a+8)=-47

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Solution for 4a-7(a+8)=-47 equation:


Simplifying
4a + -7(a + 8) = -47

Reorder the terms:
4a + -7(8 + a) = -47
4a + (8 * -7 + a * -7) = -47
4a + (-56 + -7a) = -47

Reorder the terms:
-56 + 4a + -7a = -47

Combine like terms: 4a + -7a = -3a
-56 + -3a = -47

Solving
-56 + -3a = -47

Solving for variable 'a'.

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

Add '56' to each side of the equation.
-56 + 56 + -3a = -47 + 56

Combine like terms: -56 + 56 = 0
0 + -3a = -47 + 56
-3a = -47 + 56

Combine like terms: -47 + 56 = 9
-3a = 9

Divide each side by '-3'.
a = -3

Simplifying
a = -3

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