42=17-(4z-7)

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Solution for 42=17-(4z-7) equation:


Simplifying
42 = 17 + -1(4z + -7)

Reorder the terms:
42 = 17 + -1(-7 + 4z)
42 = 17 + (-7 * -1 + 4z * -1)
42 = 17 + (7 + -4z)

Combine like terms: 17 + 7 = 24
42 = 24 + -4z

Solving
42 = 24 + -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.
42 + 4z = 24 + -4z + 4z

Combine like terms: -4z + 4z = 0
42 + 4z = 24 + 0
42 + 4z = 24

Add '-42' to each side of the equation.
42 + -42 + 4z = 24 + -42

Combine like terms: 42 + -42 = 0
0 + 4z = 24 + -42
4z = 24 + -42

Combine like terms: 24 + -42 = -18
4z = -18

Divide each side by '4'.
z = -4.5

Simplifying
z = -4.5

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