5(z-4)-2=42-20

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Solution for 5(z-4)-2=42-20 equation:


Simplifying
5(z + -4) + -2 = 42 + -20

Reorder the terms:
5(-4 + z) + -2 = 42 + -20
(-4 * 5 + z * 5) + -2 = 42 + -20
(-20 + 5z) + -2 = 42 + -20

Reorder the terms:
-20 + -2 + 5z = 42 + -20

Combine like terms: -20 + -2 = -22
-22 + 5z = 42 + -20

Combine like terms: 42 + -20 = 22
-22 + 5z = 22

Solving
-22 + 5z = 22

Solving for variable 'z'.

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

Add '22' to each side of the equation.
-22 + 22 + 5z = 22 + 22

Combine like terms: -22 + 22 = 0
0 + 5z = 22 + 22
5z = 22 + 22

Combine like terms: 22 + 22 = 44
5z = 44

Divide each side by '5'.
z = 8.8

Simplifying
z = 8.8

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