Students heights in inches were obtained as part of a study and a frequency distribution was constructed with the first class having a lower limit of 50 inches. the class widths are 6 inches. what is the frequency of the second class in the distribution? 51 51 54 56 56 57 59 61 61 62 65 69 70 70 71 71 72 73

given the equation is 8+9z=-6, the first step would be to subtract the 8 from both sides:

8+9z-8=-6-8

since 8 minus 8 = 0, this would cancel out the 8. and since -6 minus 8 equals -14, the equation would look like this

9z = -14

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