28=3+8(z-7)

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Solution for 28=3+8(z-7) equation:


Simplifying
28 = 3 + 8(z + -7)

Reorder the terms:
28 = 3 + 8(-7 + z)
28 = 3 + (-7 * 8 + z * 8)
28 = 3 + (-56 + 8z)

Combine like terms: 3 + -56 = -53
28 = -53 + 8z

Solving
28 = -53 + 8z

Solving for variable 'z'.

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

Add '-8z' to each side of the equation.
28 + -8z = -53 + 8z + -8z

Combine like terms: 8z + -8z = 0
28 + -8z = -53 + 0
28 + -8z = -53

Add '-28' to each side of the equation.
28 + -28 + -8z = -53 + -28

Combine like terms: 28 + -28 = 0
0 + -8z = -53 + -28
-8z = -53 + -28

Combine like terms: -53 + -28 = -81
-8z = -81

Divide each side by '-8'.
z = 10.125

Simplifying
z = 10.125

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