6.3+2.1(z-2)=8.5

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Solution for 6.3+2.1(z-2)=8.5 equation: 


Simplifying
6.3 + 2.1(z + -2) = 8.5

Reorder the terms:
6.3 + 2.1(-2 + z) = 8.5
6.3 + (-2 * 2.1 + z * 2.1) = 8.5
6.3 + (-4.2 + 2.1z) = 8.5

Combine like terms: 6.3 + -4.2 = 2.1
2.1 + 2.1z = 8.5

Solving
2.1 + 2.1z = 8.5

Solving for variable 'z'.

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

Add '-2.1' to each side of the equation.
2.1 + -2.1 + 2.1z = 8.5 + -2.1

Combine like terms: 2.1 + -2.1 = 0.0
0.0 + 2.1z = 8.5 + -2.1
2.1z = 8.5 + -2.1

Combine like terms: 8.5 + -2.1 = 6.4
2.1z = 6.4

Divide each side by '2.1'.
z = 3.047619048

Simplifying
z = 3.047619048

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