Question

5x-2=7x+11, 5-2y=y+8​

Answer 1

Ответ:

1)-6,2)3

Пошаговое объяснение:

1)5x-2=7x+11,

5x-7x=2+11

-2x=12

x=12/-2

x=-6

2)5-2y=y+8​

-2y-y=-5+8

-y=3

y=3/-1

y=3

Answer 2

To solve the equations, we'll start by solving each equation separately.

1. 5x - 2 = 7x + 11

Let's isolate the variable x by moving the terms with x to one side and the constant terms to the other side.

Subtract 5x from both sides:

5x - 5x - 2 = 7x - 5x + 11

Simplify:

-2 = 2x + 11

Now, subtract 11 from both sides:

-2 - 11 = 2x + 11 - 11

Simplify:

-13 = 2x

Finally, divide both sides by 2 to solve for x:

x = -13/2

2. 5 - 2y = y + 8

Let's isolate the variable y by moving the terms with y to one side and the constant terms to the other side.

Subtract y from both sides:

5 - 2y - y = y + y + 8

Simplify:

5 - 3y = 2y + 8

Now, subtract 8 from both sides:

5 - 8 - 3y = 2y + 8 - 8

Simplify:

-3 - 3y = 2y

Now, add 3y to both sides:

-3 - 3y + 3y = 2y + 3y

Simplify:

-3 = 5y

Finally, divide both sides by 5 to solve for y:

y = -3/5

So, the solutions for the equations are: x = -13/2 and y = -3/5.