(13z+20)-(4z+8)=

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Solution for (13z+20)-(4z+8)= equation:


Simplifying
(13z + 20) + -1(4z + 8) = 0

Reorder the terms:
(20 + 13z) + -1(4z + 8) = 0

Remove parenthesis around (20 + 13z)
20 + 13z + -1(4z + 8) = 0

Reorder the terms:
20 + 13z + -1(8 + 4z) = 0
20 + 13z + (8 * -1 + 4z * -1) = 0
20 + 13z + (-8 + -4z) = 0

Reorder the terms:
20 + -8 + 13z + -4z = 0

Combine like terms: 20 + -8 = 12
12 + 13z + -4z = 0

Combine like terms: 13z + -4z = 9z
12 + 9z = 0

Solving
12 + 9z = 0

Solving for variable 'z'.

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

Add '-12' to each side of the equation.
12 + -12 + 9z = 0 + -12

Combine like terms: 12 + -12 = 0
0 + 9z = 0 + -12
9z = 0 + -12

Combine like terms: 0 + -12 = -12
9z = -12

Divide each side by '9'.
z = -1.333333333

Simplifying
z = -1.333333333

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