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Simplifying
25z(4z + 3z) = 0
Combine like terms: 4z + 3z = 7z
25z(7z) = 0
Remove parenthesis around (7z)
25z * 7z = 0
Reorder the terms for easier multiplication:
25 * 7z * z = 0
Multiply 25 * 7
175z * z = 0
Multiply z * z
175z2 = 0
Solving
175z2 = 0
Solving for variable 'z'.
Move all terms containing z to the left, all other terms to the right.
Divide each side by '175'.
z2 = 0
Simplifying
z2 = 0
Take the square root of each side:
z = {0}
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