(z-3)+3(z+4)=

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Solution for (z-3)+3(z+4)= equation:


Simplifying
(z + -3) + 3(z + 4) = 0

Reorder the terms:
(-3 + z) + 3(z + 4) = 0

Remove parenthesis around (-3 + z)
-3 + z + 3(z + 4) = 0

Reorder the terms:
-3 + z + 3(4 + z) = 0
-3 + z + (4 * 3 + z * 3) = 0
-3 + z + (12 + 3z) = 0

Reorder the terms:
-3 + 12 + z + 3z = 0

Combine like terms: -3 + 12 = 9
9 + z + 3z = 0

Combine like terms: z + 3z = 4z
9 + 4z = 0

Solving
9 + 4z = 0

Solving for variable 'z'.

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

Add '-9' to each side of the equation.
9 + -9 + 4z = 0 + -9

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

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

Divide each side by '4'.
z = -2.25

Simplifying
z = -2.25

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