Question

6) 5x - 31 = 7хелп пж​

Answer 1

5x-31=7

5x=7+31

5x=38

5x:5=38:5

x=7,6

Answer 2

To solve the equation 5x - 31 = 7x, you want to isolate the variable x. Here's how you can do it step by step:

1. Start with the given equation: 5x - 31 = 7x

2. To isolate x, you want to get all the x terms on one side of the equation and the constants on the other side. You can do this by subtracting 7x from both sides of the equation:

   5x - 7x - 31 = 7x - 7x

3. Simplify both sides of the equation: -2x - 31 = 0

4. Now, to isolate x, you can add 31 to both sides of the equation to get rid of the -31 on the left side:

   -2x - 31 + 31 = 0 + 31

5. Simplify both sides: -2x = 31

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

   (-2x) / (-2) = 31 / (-2)

7. Simplify the right side: x = -31 / 2

Now you have the solution for x:

x = -31/2

You can also express this as a decimal:

x = -15.5