Five times what number plus 10 equals 20?

Responses
A -6-6
B 22
C 44
D 6

1 answer

Let's call the number x. The equation can be written as 5x + 10 = 20.

To find the value of x, we need to isolate it on one side of the equation.

Subtract 10 from both sides:
5x + 10 - 10 = 20 - 10
5x = 10

Divide both sides by 5:
5x/5 = 10/5
x = 2

So the answer is D) 6.