Question

If 5x – 4 = 31, what is the value of x?​

Answer 1

x = 5
`(2)/(5)`

Explanation:

Hi there!

So, to answer this problem, I'll use the reverse method.

31 - 4 = 27,

So how many times, can 5 go into 27?

The closest factor of 5 to 27 is 25.

5 can go in to 27, 5 times.

Continuing on, there is a 2 left over, so the answer to your question is

x = 5
`(2)/(5)`

5 · 5
`(2)/(5)` - 4 = 31

Let me know if I am incorrect and I will attempt to find the right answer for you.

waffletowne

Answer 2

`\huge\text{Hey there!}`

`\mathsf{5x - 4 = 31}`

`\large\textsf{ADD 4 to BOTH SIDES}`

`\mathsf{5x - 4 + 4 = 31 + 4}`

`\large\textsf{CANCEL out: -4 + 4 because that gives you 0}`

`\large\textsf{KEEP: 31 + 4 because that helps you solve for x}`

`\mathsf{31 + 4 = \bf 35}`

`\large\textsf{NEW EQUATION: 5x = 35}`

`\large\textsf{DIVIDE 5 to BOTH SIDES}`

`\mathsf{(5x)/(5)=(35)/(5)}`

`\large\textsf{KEEP: } \mathsf{(35)/(5)}\large\textsf{ because that helps you solve for x}`

`\large\textsf{New EQUATION: }\mathsf{x = (35)/(5)}`

`\mathsf{(35)/(7)= x}`

`\mathsf{(35)/(7)=\bf 7}`

`\boxed{\boxed{\large\textsf{\huge \bf x = 7 }}}\huge\checkmark`

`\text{Good luck on your assignment and enjoy your day!}`

~
`\frak{Amphitrite1040:)}`