-28=-z-3(z+12)

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Solution for -28=-z-3(z+12) equation:


Simplifying
-28 = -1z + -3(z + 12)

Reorder the terms:
-28 = -1z + -3(12 + z)
-28 = -1z + (12 * -3 + z * -3)
-28 = -1z + (-36 + -3z)

Reorder the terms:
-28 = -36 + -1z + -3z

Combine like terms: -1z + -3z = -4z
-28 = -36 + -4z

Solving
-28 = -36 + -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 = -36 + -4z + 4z

Combine like terms: -4z + 4z = 0
-28 + 4z = -36 + 0
-28 + 4z = -36

Add '28' to each side of the equation.
-28 + 28 + 4z = -36 + 28

Combine like terms: -28 + 28 = 0
0 + 4z = -36 + 28
4z = -36 + 28

Combine like terms: -36 + 28 = -8
4z = -8

Divide each side by '4'.
z = -2

Simplifying
z = -2

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