5(5-z)=4(z-5)

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Solution for 5(5-z)=4(z-5) equation:


Simplifying
5(5 + -1z) = 4(z + -5)
(5 * 5 + -1z * 5) = 4(z + -5)
(25 + -5z) = 4(z + -5)

Reorder the terms:
25 + -5z = 4(-5 + z)
25 + -5z = (-5 * 4 + z * 4)
25 + -5z = (-20 + 4z)

Solving
25 + -5z = -20 + 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.
25 + -5z + -4z = -20 + 4z + -4z

Combine like terms: -5z + -4z = -9z
25 + -9z = -20 + 4z + -4z

Combine like terms: 4z + -4z = 0
25 + -9z = -20 + 0
25 + -9z = -20

Add '-25' to each side of the equation.
25 + -25 + -9z = -20 + -25

Combine like terms: 25 + -25 = 0
0 + -9z = -20 + -25
-9z = -20 + -25

Combine like terms: -20 + -25 = -45
-9z = -45

Divide each side by '-9'.
z = 5

Simplifying
z = 5

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