2x-9=7 2x=16 X=8
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72 i guess!
16-7 equals = 9
7*7+11*10=159
7 out of 10 equals 70%
2 times 3 to the second power equals to 2x9 or 18 2 to the second power times 3 equals to 4x3 or 12 therefore the least common factor is 2.