Question

Question 1
The product of 7 and a number, increased by 3, is equal to the number, subtracted from 39. Find the number.

Answer 1

Answer:

$n = 4.5$

Step-by-step explanation:

We can turn these words into a real equation. This gets us:

$7n + 3 = 39 - n$

We want to isolate $n$ on one side of the equation.

Let's add $n$ to both sides:

$7n + n + 3 = -39 - n +n\\\\8n + 3 = -39$

Subtract 3 from both sides:

$8n+3-3 = 39-3\\\\8n = 36$

Divide both sides by 8:

$8n \div 8 = 36 \div 8\\\\n=4.5$

Hope this helped!