Question

1)-3,2n+4,8=-2(1,2n+2,4) 2) 5(x-7)=3(x-4)-27

Answer 1

Пошаговое объяснение:

1)-3,2n+4.8=-2(1.2+2.4)

-3.2n+4.8=-2.4n-4.8

-3.2n+2.4n=-4.8-4.8

-0.8=-9.6

2)

5(x-7)=3(x-4)-27

5x-35=3x-12-27

5x-3x=-12-27+35

2x=-4

x=-2

n=12

Answer 2

It looks like you've provided two equations. Let's solve them one by one:

Equation 1: -3, 2n+4, 8 = -2(1, 2n+2, 4)

I'm assuming that you are trying to solve for 'n' in this equation. It appears that the numbers are separated by commas, and it's not entirely clear what they represent. I'll interpret it as an equation where you have three terms separated by commas, and you want to solve for 'n'.

Here's the equation written more clearly:

-3 + 2n + 4 = -2(1 + 2n + 2) + 4

Now let's solve for 'n':

-3 + 2n + 4 = -2(1 + 2n + 2) + 4 2n + 1 = -2(2n + 3) + 4 2n + 1 = -4n - 6 + 4 2n + 1 = -4n - 2 6n = -3 n = -0.5

So, the solution for 'n' in the equation is n = -0.5.

Equation 2: 5(x-7) = 3(x-4) - 27

Let's solve for 'x' in this equation:

Distribute the terms on both sides:

5x - 35 = 3x - 12 - 27

Combine like terms:

5x - 35 = 3x - 39

Subtract 3x from both sides:

2x - 35 = -39

Add 35 to both sides:

2x = -4

Divide by 2:

x = -2

So, the solution for 'x' in the equation is x = -2.