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
Answer:
The number is 7.
Step-by-step explanation:
Let, that number is [tex]x[/tex].
According to the question,
[tex]4\times x - 7 = 21[/tex]
[tex]4\times x = 28\\x = 7[/tex]
