5z-7=42

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Solution for 5z-7=42 equation:


Simplifying
5z + -7 = 42

Reorder the terms:
-7 + 5z = 42

Solving
-7 + 5z = 42

Solving for variable 'z'.

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

Add '7' to each side of the equation.
-7 + 7 + 5z = 42 + 7

Combine like terms: -7 + 7 = 0
0 + 5z = 42 + 7
5z = 42 + 7

Combine like terms: 42 + 7 = 49
5z = 49

Divide each side by '5'.
z = 9.8

Simplifying
z = 9.8

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