(z-4)(2+7)=0

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Solution for (z-4)(2+7)=0 equation:


Simplifying
(z + -4)(2 + 7) = 0

Reorder the terms:
(-4 + z)(2 + 7) = 0

Combine like terms: 2 + 7 = 9
(-4 + z)(9) = 0

Reorder the terms for easier multiplication:
9(-4 + z) = 0
(-4 * 9 + z * 9) = 0
(-36 + 9z) = 0

Solving
-36 + 9z = 0

Solving for variable 'z'.

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

Add '36' to each side of the equation.
-36 + 36 + 9z = 0 + 36

Combine like terms: -36 + 36 = 0
0 + 9z = 0 + 36
9z = 0 + 36

Combine like terms: 0 + 36 = 36
9z = 36

Divide each side by '9'.
z = 4

Simplifying
z = 4

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