Myawalker1207
Myawalker1207 Myawalker1207
  • 26-02-2016
  • Mathematics
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Twice the sum of a number and 3 is the same as 11 increased by the number.

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SmarticalParticals
SmarticalParticals SmarticalParticals
  • 26-02-2016
Twice the sum of a number and 3

2 (x+3)

is the same

=

as 11 increased by the number

11 + x

so...

2 (x+3) = 11 + x

2x+6 = 11+x

2x-x = 11-6
x = 5
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