13=5+4z

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Solution for 13=5+4z equation:


Simplifying
13 = 5 + 4z

Solving
13 = 5 + 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.
13 + -4z = 5 + 4z + -4z

Combine like terms: 4z + -4z = 0
13 + -4z = 5 + 0
13 + -4z = 5

Add '-13' to each side of the equation.
13 + -13 + -4z = 5 + -13

Combine like terms: 13 + -13 = 0
0 + -4z = 5 + -13
-4z = 5 + -13

Combine like terms: 5 + -13 = -8
-4z = -8

Divide each side by '-4'.
z = 2

Simplifying
z = 2

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