Question

7(2y-x)-((5y-3x)-4(x+y))

Answer 1

7(2y-x)-((5y-3x)-4(x+y))=14у-7х-(5у-3х-4х-4у)=14у-7х-(у-7х)=14у-7х-у+7х=13у.

Answer 2

To simplify the expression 7(2y - x) - ((5y - 3x) - 4(x + y)), let's break it down step by step:

First, let's simplify the innermost parentheses:

7(2y - x) - ((5y - 3x) - 4(x + y)) = 7(2y - x) - (5y - 3x + 4x + 4y)

Now, distribute the 7 to the terms inside the first parentheses:

= 14y - 7x - (5y - 3x + 4x + 4y)

Next, remove the outer parentheses:

= 14y - 7x - 5y + 3x - 4x - 4y

Now, let's combine like terms:

= (14y - 5y - 4y) + (-7x + 3x - 4x) = 5y - 8x

Therefore, the simplified expression is 5y - 8x.