GARAL1222 GARAL1222
  • 24-09-2014
  • Mathematics
Answered

Seven decreased by three times a number is forty,please help



Answer :

BananaOnYourFace
BananaOnYourFace BananaOnYourFace
  • 24-09-2014
7 - 3 = 4

4 x .... = 40

4 x 10 = 40
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Illuminati750
Illuminati750 Illuminati750
  • 24-09-2014
Hello, 

x= the number
3x= three times the number

seven decreased by three times a number is forty, then:

7-3x=40
-3x=33
x=-11

Answer: the number is -11
Answer Link

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