# Expressions with variable

This is algebra. Let n represent an unknown number and write the following expressions:

1. 4 times the sum of 7 and the number x
2. 4 times 7 plus the number x
3. 7 less than the product of 4 and the number x
4. 7 times the quantity 4 more than the number x
5. 4 times the quantity 7 less than the number x

Result

a = (Correct answer is: 4(7+x))
b = (Correct answer is: 4*7+x)
c = (Correct answer is: 4*x-7)
d = (Correct answer is: 7(4+x))
e = (Correct answer is: 4(x-7))

#### Solution:

$a = 4(7+x)$
$b = 4 \cdot \ 7+x$
$c = 4 \cdot \ x-7$
$d = 7(4+x)$
$e = 4(x-7)$

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