(z+5)2=7

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Solution for (z+5)2=7 equation:


Simplifying
(z + 5) * 2 = 7

Reorder the terms:
(5 + z) * 2 = 7

Reorder the terms for easier multiplication:
2(5 + z) = 7
(5 * 2 + z * 2) = 7
(10 + 2z) = 7

Solving
10 + 2z = 7

Solving for variable 'z'.

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

Add '-10' to each side of the equation.
10 + -10 + 2z = 7 + -10

Combine like terms: 10 + -10 = 0
0 + 2z = 7 + -10
2z = 7 + -10

Combine like terms: 7 + -10 = -3
2z = -3

Divide each side by '2'.
z = -1.5

Simplifying
z = -1.5

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