Question

15-3x=5,1 3x+2x=15,5

Answer 1

Ответ:

Пошаговое объяснение

1 3x=9.9

9.9/3=3.3

X=3.3

2 5x=15.5

15.5/5=3.1

X=3.1

Answer 2

Ответ:

Пошаговое объяснение:

1) 15-3х=5,1

-3х=-10,4

х=-10,4/(-3)

х=3,47

2) 3х+2х=15,5

5х=15,5

х=15,5/5

х=3,1

Answer 3

It looks like you have two equations with variables x:

1. 15 - 3x = 5.1
2. 3x + 2x = 15.5

Let's solve each equation separately:

1. 15 - 3x = 5.1

First, subtract 15 from both sides of the equation:

-3x = 5.1 - 15 -3x = -9.9

Now, divide both sides by -3 to solve for x:

x = -9.9 / -3 x = 3.3

So, the solution to the first equation is x = 3.3.

2. 3x + 2x = 15.5

Combine like terms on the left side of the equation:

3x + 2x = 5x

Now, you have the equation:

5x = 15.5

To solve for x, divide both sides by 5:

x = 15.5 / 5 x = 3.1

So, the solution to the second equation is x = 3.1.

Therefore, the values of x that satisfy both equations are x = 3.3 and x = 3.1.

Answer 4

It seems like you have two equations here:

1. 15 - 3x = 5.1
2. 3x + 2x = 15.5

Let's solve each equation separately:

1. 15 - 3x = 5.1

To isolate the variable x, you can start by moving the constant term (5.1) to the other side of the equation:

15 - 5.1 = 3x

Now, subtract 5.1 from 15:

9.9 = 3x

To find the value of x, divide both sides by 3:

x = 9.9 / 3 x = 3.3

So, the solution for the first equation is x = 3.3.

2. 3x + 2x = 15.5

Combine the like terms on the left side of the equation:

5x = 15.5

Now, to solve for x, divide both sides by 5:

x = 15.5 / 5 x = 3.1

So, the solution for the second equation is x = 3.1.

Therefore, the solutions for the two equations are:

1. x = 3.3
2. x = 3.1