4.5-4(1-7z)=15.5

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Solution for 4.5-4(1-7z)=15.5 equation:


Simplifying
4.5 + -4(1 + -7z) = 15.5
4.5 + (1 * -4 + -7z * -4) = 15.5
4.5 + (-4 + 28z) = 15.5

Combine like terms: 4.5 + -4 = 0.5
0.5 + 28z = 15.5

Solving
0.5 + 28z = 15.5

Solving for variable 'z'.

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

Add '-0.5' to each side of the equation.
0.5 + -0.5 + 28z = 15.5 + -0.5

Combine like terms: 0.5 + -0.5 = 0.0
0.0 + 28z = 15.5 + -0.5
28z = 15.5 + -0.5

Combine like terms: 15.5 + -0.5 = 15
28z = 15

Divide each side by '28'.
z = 0.5357142857

Simplifying
z = 0.5357142857

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