Question

2(4x+1,5y)-3(2x-y) Если x+3y = -14 Sos!!!

Answer 1

Пошаговое объяснение:

8x+3y-6x+3y

2x+6y

x+3y=-14

2x+6y=-14*2

2x+6y=-28

Answer 2

To simplify the expression 2(4x + 1,5y) - 3(2x - y) given the condition x + 3y = -14, we can substitute the value of x from the given equation into the expression and simplify.

Let's start by solving the equation x + 3y = -14 for x: x = -14 - 3y

Now we can substitute this value of x into the expression: 2(4x + 1.5y) - 3(2x - y) = 2(4(-14 - 3y) + 1.5y) - 3(2(-14 - 3y) - y)

Now let's simplify the expression step by step:

= 2(-56 - 12y + 1.5y) - 3(-28 - 6y - y) = -112 - 24y + 3y + 84 + 18y + 3y = -112 + 84 + 18y + 3y + 3y - 24y = -28 - y

Therefore, the simplified expression 2(4x + 1,5y) - 3(2x - y), given the condition x + 3y = -14, is -28 - y.