3z+2(z-3)=9

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


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

Reorder the terms:
3z + 2(-3 + z) = 9
3z + (-3 * 2 + z * 2) = 9
3z + (-6 + 2z) = 9

Reorder the terms:
-6 + 3z + 2z = 9

Combine like terms: 3z + 2z = 5z
-6 + 5z = 9

Solving
-6 + 5z = 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 + 5z = 9 + 6

Combine like terms: -6 + 6 = 0
0 + 5z = 9 + 6
5z = 9 + 6

Combine like terms: 9 + 6 = 15
5z = 15

Divide each side by '5'.
z = 3

Simplifying
z = 3

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