felslin
felslin
05-06-2017
Mathematics
contestada
–x – 7 = 16 please help me
Respuesta :
tonb
tonb
05-06-2017
Move the -7 to the right, its sign will flip (do you know why?)
Negate both sides to change -x to x
-x = 16+7
-x = 23
x = -23
Answer Link
mjankiewicz
mjankiewicz
05-06-2017
-x-7=16 |+7 , add to both sides
-x=23 |*(-1)
x = -23
Answer:
-23
,,,,,,,,,,,,,,,,,,,,
-x-7=-(-23)-7=23-7=16
Answer Link
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