Question

© If you take a number, times by 7 then subtract 1. You get the same as if you took the number,

times by 5 then subtract 8. What is the number?​

Answer 1

-7/2

Explanation:

This question is a word problem.

Step 1: interpretation the question

Let's assume the number is x;

X×7 – 1 = X×5 – 8

7x - 1 = 5x - 8

Step 2. Solve the equation for the unknown.

7x - 1 = 5x - 8

Take like terms together

7x - 5x = - 8 +1

2x = -7

Divide both sides by 2

x = -7/2

The answer is -7/2