if 2x=-4 then what is the value of 8x

3 answers

To find the value of 8x, we need to first solve for x when 2x = -4.

Dividing both sides of the equation 2x = -4 by 2 gives:

x = -4/2
x = -2

Now that we know the value of x, we can substitute it into 8x:

8x = 8(-2)
8x = -16

Therefore, the value of 8x is -16.
what is the solution -8x=-0.56
To find the value of x when -8x = -0.56, we divide both sides of the equation by -8:

-8x / -8 = -0.56 / -8

This simplifies to:

x = 0.07

Therefore, the solution to -8x = -0.56 is x = 0.07.