Can anyone help me with this?: x/-4 - 10 = -5 thank you​

x=-20

Step-by-step explanation:

(x/-4)-10 = -5

-5 + 10 = x/-4

5 = x/-4

5 x -4 = x

-20 = x

x= -20

CHECK

(-20/-4)-10 = -5

5 -10 = -5

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)

i dont understand the question? ?

step-by-step explanation: