z+4(6-z)=21

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Solution for z+4(6-z)=21 equation:


Simplifying
z + 4(6 + -1z) = 21
z + (6 * 4 + -1z * 4) = 21
z + (24 + -4z) = 21

Reorder the terms:
24 + z + -4z = 21

Combine like terms: z + -4z = -3z
24 + -3z = 21

Solving
24 + -3z = 21

Solving for variable 'z'.

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

Add '-24' to each side of the equation.
24 + -24 + -3z = 21 + -24

Combine like terms: 24 + -24 = 0
0 + -3z = 21 + -24
-3z = 21 + -24

Combine like terms: 21 + -24 = -3
-3z = -3

Divide each side by '-3'.
z = 1

Simplifying
z = 1

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