.5(10z+2)-(z+9)=

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Solution for .5(10z+2)-(z+9)= equation:


Simplifying
0.5(10z + 2) + -1(z + 9) = 0

Reorder the terms:
0.5(2 + 10z) + -1(z + 9) = 0
(2 * 0.5 + 10z * 0.5) + -1(z + 9) = 0
(1 + 5z) + -1(z + 9) = 0

Reorder the terms:
1 + 5z + -1(9 + z) = 0
1 + 5z + (9 * -1 + z * -1) = 0
1 + 5z + (-9 + -1z) = 0

Reorder the terms:
1 + -9 + 5z + -1z = 0

Combine like terms: 1 + -9 = -8
-8 + 5z + -1z = 0

Combine like terms: 5z + -1z = 4z
-8 + 4z = 0

Solving
-8 + 4z = 0

Solving for variable 'z'.

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

Add '8' to each side of the equation.
-8 + 8 + 4z = 0 + 8

Combine like terms: -8 + 8 = 0
0 + 4z = 0 + 8
4z = 0 + 8

Combine like terms: 0 + 8 = 8
4z = 8

Divide each side by '4'.
z = 2

Simplifying
z = 2

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