40=5(4-z)

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Solution for 40=5(4-z) equation:


Simplifying
40 = 5(4 + -1z)
40 = (4 * 5 + -1z * 5)
40 = (20 + -5z)

Solving
40 = 20 + -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.
40 + 5z = 20 + -5z + 5z

Combine like terms: -5z + 5z = 0
40 + 5z = 20 + 0
40 + 5z = 20

Add '-40' to each side of the equation.
40 + -40 + 5z = 20 + -40

Combine like terms: 40 + -40 = 0
0 + 5z = 20 + -40
5z = 20 + -40

Combine like terms: 20 + -40 = -20
5z = -20

Divide each side by '5'.
z = -4

Simplifying
z = -4

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