0.5(z-6)-0.4(z-5)+0.3(z-4)=0

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Solution for 0.5(z-6)-0.4(z-5)+0.3(z-4)=0 equation:


Simplifying
0.5(z + -6) + -0.4(z + -5) + 0.3(z + -4) = 0

Reorder the terms:
0.5(-6 + z) + -0.4(z + -5) + 0.3(z + -4) = 0
(-6 * 0.5 + z * 0.5) + -0.4(z + -5) + 0.3(z + -4) = 0
(-3 + 0.5z) + -0.4(z + -5) + 0.3(z + -4) = 0

Reorder the terms:
-3 + 0.5z + -0.4(-5 + z) + 0.3(z + -4) = 0
-3 + 0.5z + (-5 * -0.4 + z * -0.4) + 0.3(z + -4) = 0
-3 + 0.5z + (2 + -0.4z) + 0.3(z + -4) = 0

Reorder the terms:
-3 + 0.5z + 2 + -0.4z + 0.3(-4 + z) = 0
-3 + 0.5z + 2 + -0.4z + (-4 * 0.3 + z * 0.3) = 0
-3 + 0.5z + 2 + -0.4z + (-1.2 + 0.3z) = 0

Reorder the terms:
-3 + 2 + -1.2 + 0.5z + -0.4z + 0.3z = 0

Combine like terms: -3 + 2 = -1
-1 + -1.2 + 0.5z + -0.4z + 0.3z = 0

Combine like terms: -1 + -1.2 = -2.2
-2.2 + 0.5z + -0.4z + 0.3z = 0

Combine like terms: 0.5z + -0.4z = 0.1z
-2.2 + 0.1z + 0.3z = 0

Combine like terms: 0.1z + 0.3z = 0.4z
-2.2 + 0.4z = 0

Solving
-2.2 + 0.4z = 0

Solving for variable 'z'.

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

Add '2.2' to each side of the equation.
-2.2 + 2.2 + 0.4z = 0 + 2.2

Combine like terms: -2.2 + 2.2 = 0.0
0.0 + 0.4z = 0 + 2.2
0.4z = 0 + 2.2

Combine like terms: 0 + 2.2 = 2.2
0.4z = 2.2

Divide each side by '0.4'.
z = 5.5

Simplifying
z = 5.5

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