PrincessRosequarts
PrincessRosequarts PrincessRosequarts
  • 09-09-2017
  • Mathematics
contestada

Write an equation and solve: Twice a number, increased by 3 is 7.
A) 2
B) 5
C) 8
D) 20

Respuesta :

monkeyboy680 monkeyboy680
  • 09-09-2017
2x+3=7
2x=4
x=2
The answer is A) 2
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LUPATCHES88 LUPATCHES88
  • 09-09-2017
The unknown number canbe replaced with x. So twice a number is 2x and in creased by 3 is +3. so the equation would be 2x + 3= 7  and the unknow number, or x, is 2.  2 times two is 4 plus 3 = 7
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