5(5z-2)-9(3z-2)=12

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Solution for 5(5z-2)-9(3z-2)=12 equation:


Simplifying
5(5z + -2) + -9(3z + -2) = 12

Reorder the terms:
5(-2 + 5z) + -9(3z + -2) = 12
(-2 * 5 + 5z * 5) + -9(3z + -2) = 12
(-10 + 25z) + -9(3z + -2) = 12

Reorder the terms:
-10 + 25z + -9(-2 + 3z) = 12
-10 + 25z + (-2 * -9 + 3z * -9) = 12
-10 + 25z + (18 + -27z) = 12

Reorder the terms:
-10 + 18 + 25z + -27z = 12

Combine like terms: -10 + 18 = 8
8 + 25z + -27z = 12

Combine like terms: 25z + -27z = -2z
8 + -2z = 12

Solving
8 + -2z = 12

Solving for variable 'z'.

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

Add '-8' to each side of the equation.
8 + -8 + -2z = 12 + -8

Combine like terms: 8 + -8 = 0
0 + -2z = 12 + -8
-2z = 12 + -8

Combine like terms: 12 + -8 = 4
-2z = 4

Divide each side by '-2'.
z = -2

Simplifying
z = -2

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