-3(2z-7)=-z+21-3z

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Solution for -3(2z-7)=-z+21-3z equation:


Simplifying
-3(2z + -7) = -1z + 21 + -3z

Reorder the terms:
-3(-7 + 2z) = -1z + 21 + -3z
(-7 * -3 + 2z * -3) = -1z + 21 + -3z
(21 + -6z) = -1z + 21 + -3z

Reorder the terms:
21 + -6z = 21 + -1z + -3z

Combine like terms: -1z + -3z = -4z
21 + -6z = 21 + -4z

Add '-21' to each side of the equation.
21 + -21 + -6z = 21 + -21 + -4z

Combine like terms: 21 + -21 = 0
0 + -6z = 21 + -21 + -4z
-6z = 21 + -21 + -4z

Combine like terms: 21 + -21 = 0
-6z = 0 + -4z
-6z = -4z

Solving
-6z = -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.
-6z + 4z = -4z + 4z

Combine like terms: -6z + 4z = -2z
-2z = -4z + 4z

Combine like terms: -4z + 4z = 0
-2z = 0

Divide each side by '-2'.
z = 0

Simplifying
z = 0

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