baconub
Answered

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a number is multiplied by 2 and then increased by 7. the result is 5. what is the original number

Sagot :

DᴀʀᴋPᴀʀᴀᴅᴏx

let's assume the original number to be x

now, according to question :

  • 2x + 7 = 5

  • 2x = 5 - 7

  • 2x = - 2

  • x = -2 ÷ 2

  • x = -1

So, the original number was -1

Selena328

Answer:

-1

Step-by-step explanation:

Solution:-

Let the number be x

So, the equation will be

  • 2x +7 = 5
  • 2x = 5-7
  • 2x = -2
  • x = -2/2
  • x = -1

Verification:-

  • 2x +7 = 5
  • 2(-1) + 7 = 5
  • -2 +7 = 5
  • 5 = 5

[Thus, the original number is -1.]

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