Question

When the product of the number x and 4 is subtracted from 87, the result is 23. what number results when 2 times x is added to 5

A) 35
B) 37
C) 39
D) 41

Answer 1

B

Explanation:

the product ( multiplication) of x and 4 is 4x

subtracted from 87 is 87 - 4x and the result (equal to ) is 23, that is

87 - 4x = 23 ( subtract 87 from both sides )

87 - 87 - 4x = 23 - 87 ( simplify )

- 4x = - 64 ( divide both sides by - 4 )

`(-4)/(-4)` x =
`(-64)/(-4)` , that is

x = 16

now when 2 times x , that is 2x is added to 5 we get

5 + 2x ← substitute x = 16 into the expression

5 + 2(16) = 5 + 32 = 37