3+2(10-1)=z

Solution for 3+2(10-1)=z equation:

Simplifying
3 + 2(10 + -1) = z

Combine like terms: 10 + -1 = 9
3 + 2(9) = z

Multiply 2 * 9
3 + 18 = z

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

Solving
21 = z

Solving for variable 'z'.

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

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

Combine like terms: z + -1z = 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