-7(z+3)=-8z

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Solution for -7(z+3)=-8z equation:


Simplifying
-7(z + 3) = -8z

Reorder the terms:
-7(3 + z) = -8z
(3 * -7 + z * -7) = -8z
(-21 + -7z) = -8z

Solving
-21 + -7z = -8z

Solving for variable 'z'.

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

Add '8z' to each side of the equation.
-21 + -7z + 8z = -8z + 8z

Combine like terms: -7z + 8z = 1z
-21 + 1z = -8z + 8z

Combine like terms: -8z + 8z = 0
-21 + 1z = 0

Add '21' to each side of the equation.
-21 + 21 + 1z = 0 + 21

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

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

Divide each side by '1'.
z = 21

Simplifying
z = 21

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