Z=²
8² = 8x8 = 64
the value of z = 8
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8
8z-5 = 11 add 5 to both sides 8z = 16 divide both sides by 8 z = 2
z = -2
64
Z is a constant variable in this equation. A constant variable is a variable, the value of which can never change. In this case, z would be equal to 7.