6.4+2.2(z-2)=85

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Solution for 6.4+2.2(z-2)=85 equation:


Simplifying
6.4 + 2.2(z + -2) = 85

Reorder the terms:
6.4 + 2.2(-2 + z) = 85
6.4 + (-2 * 2.2 + z * 2.2) = 85
6.4 + (-4.4 + 2.2z) = 85

Combine like terms: 6.4 + -4.4 = 2
2 + 2.2z = 85

Solving
2 + 2.2z = 85

Solving for variable 'z'.

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

Add '-2' to each side of the equation.
2 + -2 + 2.2z = 85 + -2

Combine like terms: 2 + -2 = 0
0 + 2.2z = 85 + -2
2.2z = 85 + -2

Combine like terms: 85 + -2 = 83
2.2z = 83

Divide each side by '2.2'.
z = 37.72727273

Simplifying
z = 37.72727273

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