5z-4=7z

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Solution for 5z-4=7z equation:


Simplifying
5z + -4 = 7z

Reorder the terms:
-4 + 5z = 7z

Solving
-4 + 5z = 7z

Solving for variable 'z'.

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

Add '-7z' to each side of the equation.
-4 + 5z + -7z = 7z + -7z

Combine like terms: 5z + -7z = -2z
-4 + -2z = 7z + -7z

Combine like terms: 7z + -7z = 0
-4 + -2z = 0

Add '4' to each side of the equation.
-4 + 4 + -2z = 0 + 4

Combine like terms: -4 + 4 = 0
0 + -2z = 0 + 4
-2z = 0 + 4

Combine like terms: 0 + 4 = 4
-2z = 4

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

Simplifying
z = -2

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