(z+40)+z=180

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Solution for (z+40)+z=180 equation:


Simplifying
(z + 40) + z = 180

Reorder the terms:
(40 + z) + z = 180

Remove parenthesis around (40 + z)
40 + z + z = 180

Combine like terms: z + z = 2z
40 + 2z = 180

Solving
40 + 2z = 180

Solving for variable 'z'.

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

Add '-40' to each side of the equation.
40 + -40 + 2z = 180 + -40

Combine like terms: 40 + -40 = 0
0 + 2z = 180 + -40
2z = 180 + -40

Combine like terms: 180 + -40 = 140
2z = 140

Divide each side by '2'.
z = 70

Simplifying
z = 70

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