(2z+5)+7=-3

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Solution for (2z+5)+7=-3 equation:


Simplifying
(2z + 5) + 7 = -3

Reorder the terms:
(5 + 2z) + 7 = -3

Remove parenthesis around (5 + 2z)
5 + 2z + 7 = -3

Reorder the terms:
5 + 7 + 2z = -3

Combine like terms: 5 + 7 = 12
12 + 2z = -3

Solving
12 + 2z = -3

Solving for variable 'z'.

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

Add '-12' to each side of the equation.
12 + -12 + 2z = -3 + -12

Combine like terms: 12 + -12 = 0
0 + 2z = -3 + -12
2z = -3 + -12

Combine like terms: -3 + -12 = -15
2z = -15

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

Simplifying
z = -7.5

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