Question

1)-6(x+2)=4х-17 2)(18х-19)-(4-7х)=-78

Answer 1

1)

-6x-12=4x-17

-6x-4x=-17+12

-10x=-5

x=1/2

x=0.5

2)

18x-19-4+7x=-78

25x-23=-78

25x=-78+23

25x=-55

x=-11/5

x=-2 1/5

x=-2.2

Answer 2

Ответ:

1) -6x-12=4x-17

-10x= -5

x=0.5

2)18x-19-4+7x= -78

25x= -55

x= -2.2

Answer 3

Let's solve the given equations step-by-step:

1. -6(x + 2) = 4x - 17

First, distribute the -6 on the left side of the equation:

-6x - 12 = 4x - 17

Next, move all the x terms to one side and the constant terms to the other side:

-6x - 4x = -17 + 12

Combine like terms:

-10x = -5

Finally, solve for x by dividing both sides by -10:

x = -5 / -10

x = 0.5

So, the solution to the first equation is x = 0.5.

2. (18x - 19) - (4 - 7x) = -78

Start by simplifying the expression inside the parentheses:

18x - 19 - 4 + 7x = -78

Combine like terms:

25x - 23 = -78

Now, move the constant term to the other side:

25x = -78 + 23

25x = -55

Finally, solve for x by dividing both sides by 25:

x = -55 / 25

x = -2.2

So, the solution to the second equation is x = -2.2.