Write the expression. Then, check all that apply. Four times a number increased by seven A 2-column table with 5 rows. Column 1 is labeled Key words with entries four, times, a number, increased by, seven. Column 2 is labeled Replace with entries 4, x, n, + , 7. Replace “a number” with the variable, n. The two operations are multiplication and addition. The two operations are multiplication and subtraction. The expression is written as 4n + 7. The expression is written as 4n – 7.

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2

$9.41

step-by-step explanation:

x = 23.78

step-by-step explanation: