3+3.5(1-6z)=28.5

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Solution for 3+3.5(1-6z)=28.5 equation:


Simplifying
3 + 3.5(1 + -6z) = 28.5
3 + (1 * 3.5 + -6z * 3.5) = 28.5
3 + (3.5 + -21z) = 28.5

Combine like terms: 3 + 3.5 = 6.5
6.5 + -21z = 28.5

Solving
6.5 + -21z = 28.5

Solving for variable 'z'.

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

Add '-6.5' to each side of the equation.
6.5 + -6.5 + -21z = 28.5 + -6.5

Combine like terms: 6.5 + -6.5 = 0.0
0.0 + -21z = 28.5 + -6.5
-21z = 28.5 + -6.5

Combine like terms: 28.5 + -6.5 = 22
-21z = 22

Divide each side by '-21'.
z = -1.047619048

Simplifying
z = -1.047619048

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