kaitlynn70
kaitlynn70 kaitlynn70
  • 18-08-2018
  • Mathematics
contestada

three more than twice the sum of 7 and a number is 25. Find the number

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Supernova
Supernova Supernova
  • 18-08-2018

Make an equation for this problem:

2(7 + x) + 3 = 25

Twice the sum of 7 and a number: 2(7 + x)

Three more than: + 3

is 25: = 25

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Solve the equation by distributing 2 inside the parentheses.

14 + 2x + 3 = 25

Combine like terms.

17 + 2x = 25

Subtract 17 from both sides.

2x = 8

Divide both sides by 2.

x = 4

The number is 4.

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Аноним Аноним
  • 18-08-2018

Heya

Answer: 3x+7 = 25

3x = 18

x = 6

The number is 6.

Hope this helps!

~LENA~

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