(10z+9)-(4z-4)=

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Solution for (10z+9)-(4z-4)= equation:


Simplifying
(10z + 9) + -1(4z + -4) = 0

Reorder the terms:
(9 + 10z) + -1(4z + -4) = 0

Remove parenthesis around (9 + 10z)
9 + 10z + -1(4z + -4) = 0

Reorder the terms:
9 + 10z + -1(-4 + 4z) = 0
9 + 10z + (-4 * -1 + 4z * -1) = 0
9 + 10z + (4 + -4z) = 0

Reorder the terms:
9 + 4 + 10z + -4z = 0

Combine like terms: 9 + 4 = 13
13 + 10z + -4z = 0

Combine like terms: 10z + -4z = 6z
13 + 6z = 0

Solving
13 + 6z = 0

Solving for variable 'z'.

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

Add '-13' to each side of the equation.
13 + -13 + 6z = 0 + -13

Combine like terms: 13 + -13 = 0
0 + 6z = 0 + -13
6z = 0 + -13

Combine like terms: 0 + -13 = -13
6z = -13

Divide each side by '6'.
z = -2.166666667

Simplifying
z = -2.166666667

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