Answer:
Gina's height in inches: 63 inches
Noelle's height in inches: 67 inches
Equation: n + (n - 4) = 130
Explanation:
n + (n - 4) = 130
n + n - 4 = 130
2n - 4 = 130
2n - 4 + 4 = 130 + 4
2n = 134
2n ÷ 2 = 134 ÷ 2
n = 67
67 - 4 = 63
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