Question

Solve for x: 5x + 15 = 28

A: 43/5
B: 13/5
C: 13
D: 43

Answer 1

B

Explanation:

The first thing you need to do is,

28 - 15

which is 13.

Now look at the answer choices and multiply them by 5.

It cannot be C or D because it would not fit the equation.

If anyone of them equal 13 then it is the answer.

Now lets try it.

43/5 = 8.6

13/5 = 2.6

8.6 times 5 is way to big so A is not it.

2.6 times 5 is 13.

So it is B.

Answer 2

`\mathfrak{5x + 15 = 28}`

`\mathfrak{5x = 28-15}`

`\mathfrak{5x = 13}`

`\boxed{\mathfrak{x = (13)/(5)}}` → option B.

`\mathbb{MIREU}`