70=(-7)*((-2)*-2z)

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Solution for 70=(-7)*((-2)*-2z) equation: 


Simplifying
70 = (-7)((-2) * -2z)

Multiply -2 * -2
70 = -7(4z)

Remove parenthesis around (4z)
70 = -7 * 4z

Multiply -7 * 4
70 = -28z

Solving
70 = -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.
70 + 28z = -28z + 28z

Combine like terms: -28z + 28z = 0
70 + 28z = 0

Add '-70' to each side of the equation.
70 + -70 + 28z = 0 + -70

Combine like terms: 70 + -70 = 0
0 + 28z = 0 + -70
28z = 0 + -70

Combine like terms: 0 + -70 = -70
28z = -70

Divide each side by '28'.
z = -2.5

Simplifying
z = -2.5

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