3(7)+1=z

Solution for 3(7)+1=z equation:

Simplifying
3(7) + 1 = z

Multiply 3 * 7
21 + 1 = z

Combine like terms: 21 + 1 = 22
22 = z

Solving
22 = 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.
22 + -1z = z + -1z

Combine like terms: z + -1z = 0
22 + -1z = 0

Add '-22' to each side of the equation.
22 + -22 + -1z = 0 + -22

Combine like terms: 22 + -22 = 0
0 + -1z = 0 + -22
-1z = 0 + -22

Combine like terms: 0 + -22 = -22
-1z = -22

Divide each side by '-1'.
z = 22

Simplifying
z = 22