7z+9-2z-2=

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Solution for 7z+9-2z-2= equation:


Simplifying
7z + 9 + -2z + -2 = 0

Reorder the terms:
9 + -2 + 7z + -2z = 0

Combine like terms: 9 + -2 = 7
7 + 7z + -2z = 0

Combine like terms: 7z + -2z = 5z
7 + 5z = 0

Solving
7 + 5z = 0

Solving for variable 'z'.

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

Add '-7' to each side of the equation.
7 + -7 + 5z = 0 + -7

Combine like terms: 7 + -7 = 0
0 + 5z = 0 + -7
5z = 0 + -7

Combine like terms: 0 + -7 = -7
5z = -7

Divide each side by '5'.
z = -1.4

Simplifying
z = -1.4

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