Solve each equationand double check your solution.

1/2 z+6=3/2(z+6)

Hello!

1/2z + 6 = 3/2(z + 6)

Distribute the coefficient outside of the parenthesis:

1/2z + 6 = 3/2(z) + 3/2(6)

1/2z + 6 = 3/2z + 9

Subtract 1/2z from both sides:

6 = 2/2z + 9

Subtract 9 from both sides. Simplify 2/2z into z:

6 - 9 = z + 9 - 9

-3 = z

7

step-by-step explanation:

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)