-3(9z+7)=25-4z

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Solution for -3(9z+7)=25-4z equation:


Simplifying
-3(9z + 7) = 25 + -4z

Reorder the terms:
-3(7 + 9z) = 25 + -4z
(7 * -3 + 9z * -3) = 25 + -4z
(-21 + -27z) = 25 + -4z

Solving
-21 + -27z = 25 + -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.
-21 + -27z + 4z = 25 + -4z + 4z

Combine like terms: -27z + 4z = -23z
-21 + -23z = 25 + -4z + 4z

Combine like terms: -4z + 4z = 0
-21 + -23z = 25 + 0
-21 + -23z = 25

Add '21' to each side of the equation.
-21 + 21 + -23z = 25 + 21

Combine like terms: -21 + 21 = 0
0 + -23z = 25 + 21
-23z = 25 + 21

Combine like terms: 25 + 21 = 46
-23z = 46

Divide each side by '-23'.
z = -2

Simplifying
z = -2

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