7(9+z)=8

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Solution for 7(9+z)=8 equation: 


Simplifying
7(9 + z) = 8
(9 * 7 + z * 7) = 8
(63 + 7z) = 8

Solving
63 + 7z = 8

Solving for variable 'z'.

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

Add '-63' to each side of the equation.
63 + -63 + 7z = 8 + -63

Combine like terms: 63 + -63 = 0
0 + 7z = 8 + -63
7z = 8 + -63

Combine like terms: 8 + -63 = -55
7z = -55

Divide each side by '7'.
z = -7.857142857

Simplifying
z = -7.857142857

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