8[z-(8z+56)+7]=4(z+7)

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Solution for 8[z-(8z+56)+7]=4(z+7) equation:


Simplifying
8[z + -1(8z + 56) + 7] = 4(z + 7)

Reorder the terms:
8[z + -1(56 + 8z) + 7] = 4(z + 7)
8[z + (56 * -1 + 8z * -1) + 7] = 4(z + 7)
8[z + (-56 + -8z) + 7] = 4(z + 7)

Reorder the terms:
8[-56 + 7 + z + -8z] = 4(z + 7)

Combine like terms: -56 + 7 = -49
8[-49 + z + -8z] = 4(z + 7)

Combine like terms: z + -8z = -7z
8[-49 + -7z] = 4(z + 7)
[-49 * 8 + -7z * 8] = 4(z + 7)
[-392 + -56z] = 4(z + 7)

Reorder the terms:
-392 + -56z = 4(7 + z)
-392 + -56z = (7 * 4 + z * 4)
-392 + -56z = (28 + 4z)

Solving
-392 + -56z = 28 + 4z

Solving for variable 'z'.

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

Add '-4z' to each side of the equation.
-392 + -56z + -4z = 28 + 4z + -4z

Combine like terms: -56z + -4z = -60z
-392 + -60z = 28 + 4z + -4z

Combine like terms: 4z + -4z = 0
-392 + -60z = 28 + 0
-392 + -60z = 28

Add '392' to each side of the equation.
-392 + 392 + -60z = 28 + 392

Combine like terms: -392 + 392 = 0
0 + -60z = 28 + 392
-60z = 28 + 392

Combine like terms: 28 + 392 = 420
-60z = 420

Divide each side by '-60'.
z = -7

Simplifying
z = -7

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