7-(2-3)=9-3z

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Solution for 7-(2-3)=9-3z equation:


Simplifying
7 + -1(2 + -3) = 9 + -3z

Combine like terms: 2 + -3 = -1
7 + -1(-1) = 9 + -3z

Multiply -1 * -1
7 + 1 = 9 + -3z

Combine like terms: 7 + 1 = 8
8 = 9 + -3z

Solving
8 = 9 + -3z

Solving for variable 'z'.

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

Add '3z' to each side of the equation.
8 + 3z = 9 + -3z + 3z

Combine like terms: -3z + 3z = 0
8 + 3z = 9 + 0
8 + 3z = 9

Add '-8' to each side of the equation.
8 + -8 + 3z = 9 + -8

Combine like terms: 8 + -8 = 0
0 + 3z = 9 + -8
3z = 9 + -8

Combine like terms: 9 + -8 = 1
3z = 1

Divide each side by '3'.
z = 0.3333333333

Simplifying
z = 0.3333333333

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