Question

Gavin was thinking of a number. Gavin subtracts 10 from it and gets an answer of 2.7. What was the original number?

Answer 1

12.7

Explanation:

10+2.7=12.7

Answer 2

The number is 12.7

Explanation:

Forming algebraic expressions and solving:

Let the number be 'x'

Subtract 10 from 'x' : x - 10

x - 10 = 2.7

Add 10 to both sides,

x = 2.7 + 10

x = 12.7

2.7 +

10.0

12.7