Answer:
The number is 7.
Step-by-step explanation:
4n - 7 = 21 Add 7 on both sides
4n = 28 Isolate the variable by dividing 4 on both sides
n= 7
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3/4 divided by 2 would equal 3/8.
Answer:
B
Step-by-step explanation:
W/4 and 7z both have coefficients