30=-4(7z+5)

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Solution for 30=-4(7z+5) equation: 


Simplifying
30 = -4(7z + 5)

Reorder the terms:
30 = -4(5 + 7z)
30 = (5 * -4 + 7z * -4)
30 = (-20 + -28z)

Solving
30 = -20 + -28z

Solving for variable 'z'.

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

Add '28z' to each side of the equation.
30 + 28z = -20 + -28z + 28z

Combine like terms: -28z + 28z = 0
30 + 28z = -20 + 0
30 + 28z = -20

Add '-30' to each side of the equation.
30 + -30 + 28z = -20 + -30

Combine like terms: 30 + -30 = 0
0 + 28z = -20 + -30
28z = -20 + -30

Combine like terms: -20 + -30 = -50
28z = -50

Divide each side by '28'.
z = -1.785714286

Simplifying
z = -1.785714286

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