.5(10z+10)-(z-4)=

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Solution for .5(10z+10)-(z-4)= equation:


Simplifying
0.5(10z + 10) + -1(z + -4) = 0

Reorder the terms:
0.5(10 + 10z) + -1(z + -4) = 0
(10 * 0.5 + 10z * 0.5) + -1(z + -4) = 0
(5 + 5z) + -1(z + -4) = 0

Reorder the terms:
5 + 5z + -1(-4 + z) = 0
5 + 5z + (-4 * -1 + z * -1) = 0
5 + 5z + (4 + -1z) = 0

Reorder the terms:
5 + 4 + 5z + -1z = 0

Combine like terms: 5 + 4 = 9
9 + 5z + -1z = 0

Combine like terms: 5z + -1z = 4z
9 + 4z = 0

Solving
9 + 4z = 0

Solving for variable 'z'.

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

Add '-9' to each side of the equation.
9 + -9 + 4z = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 4z = 0 + -9
4z = 0 + -9

Combine like terms: 0 + -9 = -9
4z = -9

Divide each side by '4'.
z = -2.25

Simplifying
z = -2.25

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