100[0.07(z+3)]=0

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Solution for 100[0.07(z+3)]=0 equation:


Simplifying
100[0.07(z + 3)] = 0

Reorder the terms:
100[0.07(3 + z)] = 0
100[(3 * 0.07 + z * 0.07)] = 0
100[(0.21 + 0.07z)] = 0
[0.21 * 100 + 0.07z * 100] = 0
[21 + 7z] = 0

Solving
21 + 7z = 0

Solving for variable 'z'.

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

Add '-21' to each side of the equation.
21 + -21 + 7z = 0 + -21

Combine like terms: 21 + -21 = 0
0 + 7z = 0 + -21
7z = 0 + -21

Combine like terms: 0 + -21 = -21
7z = -21

Divide each side by '7'.
z = -3

Simplifying
z = -3

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