3(5z+7)=-20-6z

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Solution for 3(5z+7)=-20-6z equation:


Simplifying
3(5z + 7) = -20 + -6z

Reorder the terms:
3(7 + 5z) = -20 + -6z
(7 * 3 + 5z * 3) = -20 + -6z
(21 + 15z) = -20 + -6z

Solving
21 + 15z = -20 + -6z

Solving for variable 'z'.

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

Add '6z' to each side of the equation.
21 + 15z + 6z = -20 + -6z + 6z

Combine like terms: 15z + 6z = 21z
21 + 21z = -20 + -6z + 6z

Combine like terms: -6z + 6z = 0
21 + 21z = -20 + 0
21 + 21z = -20

Add '-21' to each side of the equation.
21 + -21 + 21z = -20 + -21

Combine like terms: 21 + -21 = 0
0 + 21z = -20 + -21
21z = -20 + -21

Combine like terms: -20 + -21 = -41
21z = -41

Divide each side by '21'.
z = -1.952380952

Simplifying
z = -1.952380952

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