Question

14. Simplify the expressions
a. 12 - 5y + 21 + y -23

Answer 1

10 - 4y

Explanation:

Combine like terms. 12, 21 and -23 add up to 10, and -5y + y is -4y.

Then, together, we have 10 - 4y (answer)

Answer 2

`\large\boxed{10 - 4y}`

Explanation:

12 - 5y + 21 + y - 23

Combine like terms (add -5y to + y)

12 + 21 - 4y - 23

Add 12 + 21

33 - 4y - 23

Subtract 23 from 33

`\large\boxed{10 - 4y}`

This is the simplest form of the expression.

Hope this helps :)