2z+6+15-3z=

Solution for 2z+6+15-3z= equation:

Simplifying
2z + 6 + 15 + -3z = 0

Reorder the terms:
6 + 15 + 2z + -3z = 0

Combine like terms: 6 + 15 = 21
21 + 2z + -3z = 0

Combine like terms: 2z + -3z = -1z
21 + -1z = 0

Solving
21 + -1z = 0

Solving for variable 'z'.

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

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