Step 1: 5 (2x + 5) = 100
Step 2: 10x + 5 = 100
Step 3: 10x= 95
Step 4: x= 9.5
What error did Andy make, and what is the correct solution to his problem?

He didn’t state the collection of like term in step 1

Step-by-step explanation:

Step 1: 5 (2x + 5) = 100

5*2x+5*5=100

10x + 25=100

Step2:Collect like term

10x = 100-25

Step 3:

10x = 75

Step 4: divide both side by 10

10x/10 = 75/10

X = 7.5

idk

step-by-step explanation:

use that smart brain

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)