9+5(1+4z)=-21

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Solution for 9+5(1+4z)=-21 equation:


Simplifying
9 + 5(1 + 4z) = -21
9 + (1 * 5 + 4z * 5) = -21
9 + (5 + 20z) = -21

Combine like terms: 9 + 5 = 14
14 + 20z = -21

Solving
14 + 20z = -21

Solving for variable 'z'.

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

Add '-14' to each side of the equation.
14 + -14 + 20z = -21 + -14

Combine like terms: 14 + -14 = 0
0 + 20z = -21 + -14
20z = -21 + -14

Combine like terms: -21 + -14 = -35
20z = -35

Divide each side by '20'.
z = -1.75

Simplifying
z = -1.75

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