Answer:
x = 7/4
Explanation:
2 1/4 = 1 2/7 ÷ x
change mixed numbers to improper fractions:
9/4 = 9/7x
multiply each side by 7/9 to isolate 'x':
9/4(7/9) = x
63/36 = x
x = 7/4 (simplified)
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