9-5z=12-1(2+7)

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Solution for 9-5z=12-1(2+7) equation:


Simplifying
9 + -5z = 12 + -1(2 + 7)

Combine like terms: 2 + 7 = 9
9 + -5z = 12 + -1(9)

Multiply -1 * 9
9 + -5z = 12 + -9

Combine like terms: 12 + -9 = 3
9 + -5z = 3

Solving
9 + -5z = 3

Solving for variable 'z'.

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

Add '-9' to each side of the equation.
9 + -9 + -5z = 3 + -9

Combine like terms: 9 + -9 = 0
0 + -5z = 3 + -9
-5z = 3 + -9

Combine like terms: 3 + -9 = -6
-5z = -6

Divide each side by '-5'.
z = 1.2

Simplifying
z = 1.2

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