Answer:
x = 942 (rounding to the next whole)
Step-by-step explanation:
Let's solve the equation:
0.9 (x-20) = 830
0.9x - 18 = 830
0.9x = 830 + 18
0.9x = 848
x = 848/0.9
x = 942.22
x = 942 (rounding to the next whole)
Answer:
We can solve this using inverse operations & “working backwards.”
Addition is the inverse to subtraction, so we’ll subtract 20 from 830.
830 - 20 = 810
From there, since division is the inverse to multiplication, we’ll divide 810 by .9 .
810/.9 = 900
Therefore, x is equal to 900.
You can check this answer by working through it forwards. (900 x .9 = 810, 810 + 20 = 830.)
Hope this helped! :)
Step-by-step explanation:
