25-(z+5)2=

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Solution for 25-(z+5)2= equation:


Simplifying
25 + -1(z + 5) * 2 = 0

Reorder the terms:
25 + -1(5 + z) * 2 = 0

Reorder the terms for easier multiplication:
25 + -1 * 2(5 + z) = 0

Multiply -1 * 2
25 + -2(5 + z) = 0
25 + (5 * -2 + z * -2) = 0
25 + (-10 + -2z) = 0

Combine like terms: 25 + -10 = 15
15 + -2z = 0

Solving
15 + -2z = 0

Solving for variable 'z'.

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

Add '-15' to each side of the equation.
15 + -15 + -2z = 0 + -15

Combine like terms: 15 + -15 = 0
0 + -2z = 0 + -15
-2z = 0 + -15

Combine like terms: 0 + -15 = -15
-2z = -15

Divide each side by '-2'.
z = 7.5

Simplifying
z = 7.5

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