X = 209 X – 35 = 37 X = 10 X = 30 2 X + 5 = 45 5 X + 15 = 65 10 X + 60 = 150 X=7 7 X – 30 = 19 6 X – 100 = 80 X=9
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X = 209 X – 35 = 37
X = 10 X = 30
2 X + 5 = 45 5 X + 15 = 65
10 X + 60 = 150 X=7
7 X – 30 = 19
6 X – 100 = 80
X=9
X=8