7z-1=2z+19

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Solution for 7z-1=2z+19 equation:


Simplifying
7z + -1 = 2z + 19

Reorder the terms:
-1 + 7z = 2z + 19

Reorder the terms:
-1 + 7z = 19 + 2z

Solving
-1 + 7z = 19 + 2z

Solving for variable 'z'.

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

Add '-2z' to each side of the equation.
-1 + 7z + -2z = 19 + 2z + -2z

Combine like terms: 7z + -2z = 5z
-1 + 5z = 19 + 2z + -2z

Combine like terms: 2z + -2z = 0
-1 + 5z = 19 + 0
-1 + 5z = 19

Add '1' to each side of the equation.
-1 + 1 + 5z = 19 + 1

Combine like terms: -1 + 1 = 0
0 + 5z = 19 + 1
5z = 19 + 1

Combine like terms: 19 + 1 = 20
5z = 20

Divide each side by '5'.
z = 4

Simplifying
z = 4

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