7(3z-9)=

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


Simplifying
7(3z + -9) = 0

Reorder the terms:
7(-9 + 3z) = 0
(-9 * 7 + 3z * 7) = 0
(-63 + 21z) = 0

Solving
-63 + 21z = 0

Solving for variable 'z'.

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

Add '63' to each side of the equation.
-63 + 63 + 21z = 0 + 63

Combine like terms: -63 + 63 = 0
0 + 21z = 0 + 63
21z = 0 + 63

Combine like terms: 0 + 63 = 63
21z = 63

Divide each side by '21'.
z = 3

Simplifying
z = 3

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