Thank you to anyone that helps

10

Step-by-step explanation:

1 Subtract 150150 from both sides.

10x=200+5x-150

10x=200+5x−150

2 Simplify  200+5x-150200+5x−150  to  5x+505x+50.

10x=5x+50

10x=5x+50

3 Subtract 5x5x from both sides.

10x-5x=50

10x−5x=50

4 Simplify  10x-5x10x−5x  to  5x5x.

5x=50

5x=50

5 Divide both sides by 55.

x=\frac{50}{5}

x=

5

50

​

6 Simplify  \frac{50}{5}

5

50

​

  to  1010.

x=10

x=10

Done

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)