What is the value of x in 5x - 4 = 7x + 8?

x = -6

Step-by-step explanation:

To find the value of x in the given equation, we have to solve for x.

5x - 4 = 7x + 8

Add 4 to both sides.

5x = 7x + 12

Subtract 7x from both sides.

-2x = 12

Divide both sides by -2.

x = -6

So the value of x would be -6.

I hope this helps. Happy studying.

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

351°f

step-by-step explanation: