7-(z+1)=9

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Solution for 7-(z+1)=9 equation:


Simplifying
7 + -1(z + 1) = 9

Reorder the terms:
7 + -1(1 + z) = 9
7 + (1 * -1 + z * -1) = 9
7 + (-1 + -1z) = 9

Combine like terms: 7 + -1 = 6
6 + -1z = 9

Solving
6 + -1z = 9

Solving for variable 'z'.

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

Add '-6' to each side of the equation.
6 + -6 + -1z = 9 + -6

Combine like terms: 6 + -6 = 0
0 + -1z = 9 + -6
-1z = 9 + -6

Combine like terms: 9 + -6 = 3
-1z = 3

Divide each side by '-1'.
z = -3

Simplifying
z = -3

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