0.9x+20=830 what is x?

Question

l33 · Answer

x = 942.22

notmeta · Answer

cThe solution to the equation is x = 942.22.11.02.2020

curriful · Answer

0.9x+20=830
Subtract 20 from both sides.
0.9x=830−20
Subtract 20 from 830 to get 810.
0.9x=810
Divide both sides by 0.9.
x= 
0.9
810
​
 
Expand  
0.9
810
​
  by multiplying both numerator and the denominator by 10.
x= 
9
8100
​
 
Divide 8100 by 9 to get 900.
x=900

Phantomdex · Answer

0.9" was replaced by "(9/10)"
 simplify 9/10
(9/10 x(x - 20)) - 830 = 0
9 x (x - 20)/10 - 830 = 0
830 = 830/1 = 830 x 10/10
9 x (x - 20) - (830 x 10)/10 = 9x - 8480/10
9x - 8490/10 = 0
9x - 8480/10 x 10 = 0 x 10
9x - 8480 = 0
Add 8480 to both sides:
x = 8480/9 - 942.222

Phantomdex · Answer

How are ya'll typing so fast-

notmeta · Answer

108 wpm

Phantomdex · Answer

I type fast but math takes time smh

jayfafr · Answer

I type with the speed of sonic

notmeta · Answer

sure sure sure sure sure I'm faster

Phantomdex · Answer

@jayfafr wrote:

I type with the speed of sonic

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