Question

A1.x+5-2(4-x) -x-3A2.4(x+4)-5(2-x) -(5+4)x-3​

Answer 1

А1. x+5-2(4-x)-x-3=5-8+2x-3=-6+2x

A2. 4(x+4)-5(2-x)-(5+4)x-3=4x+16-10+5x-9x-3=0+3=3

Answer 2

To simplify the expression, let's break it down step by step:

A1.x + 5 - 2(4 - x) - x - 3A2.4(x + 4) - 5(2 - x) - (5 + 4)x - 3

First, we can simplify the expression inside the parentheses:

A1.x + 5 - 2(4 - x) - x - 3A2.4(x + 4) - 5(2 - x) - (5 + 4)x - 3 = A1.x + 5 - 2(4) + 2x - x - 3A2.4(x) - 3A2.4(4) - 5(2) + 5x - (5 + 4)x - 3

Next, let's simplify the multiplication:

A1.x + 5 - 8 + 2x - x - 3A2.4(x) - 12A2.4 - 10 + 5x - 9x - 3 = A1.x + 5 - 8 + 2x - x - 3(2.4x) - 12A2.4 - 10 + 5x - 9x - 3 = A1.x + 5 - 8 + 2x - x - 7.2x - 12A2.4 - 10 + 5x - 9x - 3 = A1.x + 5 - 8 + 2x - x - 7.2x - 10 - 12A2.4 + 5x - 9x - 3

Now, let's combine like terms:

A1.x + 5 - 8 + 2x - x - 7.2x - 10 - 12A2.4 + 5x - 9x - 3 = (A1 - 7.2)x + (2 - 1 - 7.2 - 9)x + (5 - 8 - 10 - 3 - 12A2.4) = (A1 - 7.2)x + (-15.2)x + (5 - 8 - 10 - 3 - 12A2.4) = (A1 - 7.2 - 15.2)x + (5 - 8 - 10 - 3 - 12A2.4) = (A1 - 22.4)x + (-16 - 12A2.4) = (A1 - 22.4)x - 16 - 12A2.4

So, the simplified expression is (A1 - 22.4)x - 16 - 12A2.4.