4z-3(7+3z)=-1

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Solution for 4z-3(7+3z)=-1 equation:


Simplifying
4z + -3(7 + 3z) = -1
4z + (7 * -3 + 3z * -3) = -1
4z + (-21 + -9z) = -1

Reorder the terms:
-21 + 4z + -9z = -1

Combine like terms: 4z + -9z = -5z
-21 + -5z = -1

Solving
-21 + -5z = -1

Solving for variable 'z'.

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

Add '21' to each side of the equation.
-21 + 21 + -5z = -1 + 21

Combine like terms: -21 + 21 = 0
0 + -5z = -1 + 21
-5z = -1 + 21

Combine like terms: -1 + 21 = 20
-5z = 20

Divide each side by '-5'.
z = -4

Simplifying
z = -4

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