0.4(2z+7)+2.2=.5(2z-6)

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Solution for 0.4(2z+7)+2.2=.5(2z-6) equation:


Simplifying
0.4(2z + 7) + 2.2 = 0.5(2z + -6)

Reorder the terms:
0.4(7 + 2z) + 2.2 = 0.5(2z + -6)
(7 * 0.4 + 2z * 0.4) + 2.2 = 0.5(2z + -6)
(2.8 + 0.8z) + 2.2 = 0.5(2z + -6)

Reorder the terms:
2.8 + 2.2 + 0.8z = 0.5(2z + -6)

Combine like terms: 2.8 + 2.2 = 5
5 + 0.8z = 0.5(2z + -6)

Reorder the terms:
5 + 0.8z = 0.5(-6 + 2z)
5 + 0.8z = (-6 * 0.5 + 2z * 0.5)
5 + 0.8z = (-3 + 1z)

Solving
5 + 0.8z = -3 + 1z

Solving for variable 'z'.

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

Add '-1z' to each side of the equation.
5 + 0.8z + -1z = -3 + 1z + -1z

Combine like terms: 0.8z + -1z = -0.2z
5 + -0.2z = -3 + 1z + -1z

Combine like terms: 1z + -1z = 0
5 + -0.2z = -3 + 0
5 + -0.2z = -3

Add '-5' to each side of the equation.
5 + -5 + -0.2z = -3 + -5

Combine like terms: 5 + -5 = 0
0 + -0.2z = -3 + -5
-0.2z = -3 + -5

Combine like terms: -3 + -5 = -8
-0.2z = -8

Divide each side by '-0.2'.
z = 40

Simplifying
z = 40

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