Question

1)2x+8=x-7 2)4-3y=5-2y 3)-12n-24=11n-24 4)3x-45+2x=6+2x-45 5)170-7y-28=3y-28

Answer 1

Ответ:

Пошаговое объяснение:

Решение на фото в приложении

Answer 2

Ответ:

1

2х+8=х-7

2х-х=-7-8

х=-15

2

4-3y=5-2y

-3y+2y=5-4

y=-1

3

-12n-24=11n-24

-12n-11n=-24+24

-23n=0

n=0

4

3x-45+2x=6+2x-45

3x+2x-2x=6-45+45

3x=6

x=2

5

170-7y-28=3y-28

-7y-3y=-28-170+28

-10y=-170

y=-170/-10

y=17

Пошаговое объяснение:

Answer 3

Let's solve each equation step by step:

1. 2x + 8 = x - 7

To solve for x, we want to isolate x on one side of the equation. We can do that by moving all the terms with x to one side and the constant terms to the other side:

2x - x = -7 - 8

Simplify:

x = -15

So the solution for this equation is x = -15.

2. 4 - 3y = 5 - 2y

Similarly, let's isolate y on one side of the equation:

-3y + 2y = 5 - 4

Simplify:

-y = 1

Now, to get y alone, we need to multiply both sides by -1:

y = -1

So the solution for this equation is y = -1.

3. -12n - 24 = 11n - 24

In this equation, we notice that the constant terms (-24) cancel each other out. Let's proceed with solving for n:

-12n - 11n = 0

Combine like terms:

-23n = 0

Now, to isolate n, divide both sides by -23:

n = 0

So the solution for this equation is n = 0.

4. 3x - 45 + 2x = 6 + 2x - 45

Combine like terms on both sides:

5x - 45 = -39

Now, let's isolate x by moving the constant term to the other side:

5x = -39 + 45

Simplify:

5x = 6

To solve for x, divide both sides by 5:

x = 6 / 5

So the solution for this equation is x = 6/5 or 1.2.

5. 170 - 7y - 28 = 3y - 28

Combine like terms on both sides:

170 - 28 = 3y - 28 + 7y

Simplify:

142 = 10y

Now, to solve for y, divide both sides by 10:

y = 142 / 10

Simplify:

y = 14.2

So the solution for this equation is y = 14.2.

Please note that these are the solutions for the given equations. Always double-check your answers by plugging the values back into the original equations to verify their accuracy.