Question

7×(x+5) 9(5-3x) -7(9+3y)

Answer 1

Ответ:

7 × (х + 5) = 7х + 35

9(5 - 3х) = 45 - 27х

-7(9 + 3у) = -63 - 21у

Answer 2

7x + 35
45 - 27x
-63 - 21y

Answer 3

It looks like you want to simplify the expressions:

1. 7×(x+5)
2. 9(5-3x)
3. -7(9+3y)

Let's simplify each of them one by one:

1. 7×(x+5):

   Distribute the 7 into the parentheses:

   7(x+5) = 7x + 35

2. 9(5-3x):

   Distribute the 9 into the parentheses:

   9(5-3x) = 45 - 27x

3. -7(9+3y):

   Distribute the -7 into the parentheses:

   -7(9+3y) = -63 - 21y

So, the simplified expressions are:

1. 7×(x+5) = 7x + 35
2. 9(5-3x) = 45 - 27x
3. -7(9+3y) = -63 - 21y