To find the value of z, we need to isolate z on one side of the equation.
Given equation: -2/7z + 9 = 17
First, we subtract 9 from both sides of the equation:
-2/7z = 17 - 9
-2/7z = 8
Next, we need to get rid of the fraction, so we multiply both sides of the equation by the reciprocal of -2/7, which is -7/2:
(-7/2)(-2/7z) = (-7/2)(8)
z = -56/2
Simplifying the right side:
z = -28
The value of z is -28.
-2/7z + 9 = 17
z = ?
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