The linear equation was solved using these steps. Linear equation: 5 (122+15) = 7
Step 1: 4r +5=7
Step 2: 4r=2
Step 3: x= 1 / 1
The property that was used in step 1 was the
The property that was used in step 2 was the
The property that was used in step 3 was the

Situation: . find the substance's half-life, in days. round your answer to the nearest tenth. a 11 gram sample of a substance that's used to treat thyroid disorders has a k. value of 0.1247. enter the correct answer n - noekt done no - initial mass (at time t = 0) n - mass at timet k a positive constant that depends on the substance itself and on the units used to measure time t= time, in days