5(z-3)=4(z-3)

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Solution for 5(z-3)=4(z-3) equation:


Simplifying
5(z + -3) = 4(z + -3)

Reorder the terms:
5(-3 + z) = 4(z + -3)
(-3 * 5 + z * 5) = 4(z + -3)
(-15 + 5z) = 4(z + -3)

Reorder the terms:
-15 + 5z = 4(-3 + z)
-15 + 5z = (-3 * 4 + z * 4)
-15 + 5z = (-12 + 4z)

Solving
-15 + 5z = -12 + 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.
-15 + 5z + -4z = -12 + 4z + -4z

Combine like terms: 5z + -4z = 1z
-15 + 1z = -12 + 4z + -4z

Combine like terms: 4z + -4z = 0
-15 + 1z = -12 + 0
-15 + 1z = -12

Add '15' to each side of the equation.
-15 + 15 + 1z = -12 + 15

Combine like terms: -15 + 15 = 0
0 + 1z = -12 + 15
1z = -12 + 15

Combine like terms: -12 + 15 = 3
1z = 3

Divide each side by '1'.
z = 3

Simplifying
z = 3

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