z-2z-3=-5(z-1.8)

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Solution for z-2z-3=-5(z-1.8) equation:


Simplifying
z + -2z + -3 = -5(z + -1.8)

Reorder the terms:
-3 + z + -2z = -5(z + -1.8)

Combine like terms: z + -2z = -1z
-3 + -1z = -5(z + -1.8)

Reorder the terms:
-3 + -1z = -5(-1.8 + z)
-3 + -1z = (-1.8 * -5 + z * -5)
-3 + -1z = (9 + -5z)

Solving
-3 + -1z = 9 + -5z

Solving for variable 'z'.

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

Add '5z' to each side of the equation.
-3 + -1z + 5z = 9 + -5z + 5z

Combine like terms: -1z + 5z = 4z
-3 + 4z = 9 + -5z + 5z

Combine like terms: -5z + 5z = 0
-3 + 4z = 9 + 0
-3 + 4z = 9

Add '3' to each side of the equation.
-3 + 3 + 4z = 9 + 3

Combine like terms: -3 + 3 = 0
0 + 4z = 9 + 3
4z = 9 + 3

Combine like terms: 9 + 3 = 12
4z = 12

Divide each side by '4'.
z = 3

Simplifying
z = 3

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