8z+3=21-4z

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Solution for 8z+3=21-4z equation:


Simplifying
8z + 3 = 21 + -4z

Reorder the terms:
3 + 8z = 21 + -4z

Solving
3 + 8z = 21 + -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.
3 + 8z + 4z = 21 + -4z + 4z

Combine like terms: 8z + 4z = 12z
3 + 12z = 21 + -4z + 4z

Combine like terms: -4z + 4z = 0
3 + 12z = 21 + 0
3 + 12z = 21

Add '-3' to each side of the equation.
3 + -3 + 12z = 21 + -3

Combine like terms: 3 + -3 = 0
0 + 12z = 21 + -3
12z = 21 + -3

Combine like terms: 21 + -3 = 18
12z = 18

Divide each side by '12'.
z = 1.5

Simplifying
z = 1.5

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