X can be from -1.6 to -1.7 or x can be from -3.3 to 3.3
Hello,
A is True
-x-4=8==>x=-12
or -(-x-4)=8==>x=4
B is false
|0.5x-42.1| is always >0
but -20.6/3.4<0 ==> no solution
C: ? not a equation
D is false |2x-10|=-20has no solution
E: ? not an equation
I don't know what you expected!
You can subtract 9 from the 713 value and trace until you get a multiple of 7 or vice versa.
It could be one of :
80 figilbuttons and 7 rybirens
or
14 rybirens and 73 figilbuttons
