Question

7(20-y)-5(-3y+5)-(140-y)=

Answer 1

$7(20 - y) - 5( - 3y + 5) - (140 - y) = 140 - 7y + 15y - 25 - 140 + y = 9y - 25$

Answer 2

140-7y+15y-25-140+y=9y-25

Answer 3

To simplify the expression, follow the order of operations (PEMDAS/BODMAS):

1. Perform operations within parentheses/brackets.
2. Perform multiplications and divisions from left to right.
3. Perform additions and subtractions from left to right.

Let's simplify the given expression step by step:

1. First, simplify inside the parentheses and brackets: 7(20 - y) - 5(-3y + 5) - (140 - y)

   Distribute the multiplication: = 7 * 20 - 7 * y - 5 * (-3y) + 5 * 5 - 140 + y

   = 140 - 7y + 15y + 25 - 140 + y

2. Combine like terms (combine terms with the same variable): = (-7y + 15y + y) + (140 - 140) + 25

   = 9y + 0 + 25

3. Simplify the result: = 9y + 25

So, the simplified expression is 9y + 25.