-28=6+4(z+9)

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Solution for -28=6+4(z+9) equation:


Simplifying
-28 = 6 + 4(z + 9)

Reorder the terms:
-28 = 6 + 4(9 + z)
-28 = 6 + (9 * 4 + z * 4)
-28 = 6 + (36 + 4z)

Combine like terms: 6 + 36 = 42
-28 = 42 + 4z

Solving
-28 = 42 + 4z

Solving for variable 'z'.

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

Add '-4z' to each side of the equation.
-28 + -4z = 42 + 4z + -4z

Combine like terms: 4z + -4z = 0
-28 + -4z = 42 + 0
-28 + -4z = 42

Add '28' to each side of the equation.
-28 + 28 + -4z = 42 + 28

Combine like terms: -28 + 28 = 0
0 + -4z = 42 + 28
-4z = 42 + 28

Combine like terms: 42 + 28 = 70
-4z = 70

Divide each side by '-4'.
z = -17.5

Simplifying
z = -17.5

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