-3(2z-5)=-2z-3z+21

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Solution for -3(2z-5)=-2z-3z+21 equation:


Simplifying
-3(2z + -5) = -2z + -3z + 21

Reorder the terms:
-3(-5 + 2z) = -2z + -3z + 21
(-5 * -3 + 2z * -3) = -2z + -3z + 21
(15 + -6z) = -2z + -3z + 21

Reorder the terms:
15 + -6z = 21 + -2z + -3z

Combine like terms: -2z + -3z = -5z
15 + -6z = 21 + -5z

Solving
15 + -6z = 21 + -5z

Solving for variable 'z'.

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

Add '5z' to each side of the equation.
15 + -6z + 5z = 21 + -5z + 5z

Combine like terms: -6z + 5z = -1z
15 + -1z = 21 + -5z + 5z

Combine like terms: -5z + 5z = 0
15 + -1z = 21 + 0
15 + -1z = 21

Add '-15' to each side of the equation.
15 + -15 + -1z = 21 + -15

Combine like terms: 15 + -15 = 0
0 + -1z = 21 + -15
-1z = 21 + -15

Combine like terms: 21 + -15 = 6
-1z = 6

Divide each side by '-1'.
z = -6

Simplifying
z = -6

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