Question

Use your knowledge about parentheses and substitution to solve the following:

1. r(s)(t) =

2. (r)(s)(t)(x)(y) =

3. (7x + 2Y) =

Answer 1

what grade you in

your answer 3x+y

Explanation:

Answer 2

3x+y

x

​

=−3

=−y+3

3x+y

3(−y+3)+y

−3y+9+y

−2y

y

​

=−3

=−3

=−3

=−12

=6

​

Explanation:

Hope this helps!