2z+0.5(z-4)=9

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Solution for 2z+0.5(z-4)=9 equation:


Simplifying
2z + 0.5(z + -4) = 9

Reorder the terms:
2z + 0.5(-4 + z) = 9
2z + (-4 * 0.5 + z * 0.5) = 9
2z + (-2 + 0.5z) = 9

Reorder the terms:
-2 + 2z + 0.5z = 9

Combine like terms: 2z + 0.5z = 2.5z
-2 + 2.5z = 9

Solving
-2 + 2.5z = 9

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 + 2.5z = 9 + 2

Combine like terms: -2 + 2 = 0
0 + 2.5z = 9 + 2
2.5z = 9 + 2

Combine like terms: 9 + 2 = 11
2.5z = 11

Divide each side by '2.5'.
z = 4.4

Simplifying
z = 4.4

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