Can an equation with the variable inside grouping symbols be written as a two step equation

  yes

Step-by-step explanation:

In general, a linear equation with a variable anywhere can be written as a 2-step equation. (It may take several steps to get there.)

Example 1:

  2(3x +3) = 18 . . . original equation with variable in parentheses

  6x +6 = 18 . . . . . 2-step equivalent

Example 2:

  4(x -9) +6 = 3(2x +17) . . . original equation

  4x -36 +6 = 6x +51

  -30 = 2x +51 . . . . . . 2-step equivalent

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)

step-by-step explanation: