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  • 25-11-2020
  • Mathematics
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If 25 is added to 5 times a certain number, the result is 7 times the number minus 35. Find the number. ​

Respuesta :

Аноним Аноним
  • 25-11-2020

Step-by-step explanation:

Required Answer:-

Let the certain number =x

According to the question

[tex]{:}\longrightarrow[/tex][tex]\sf 5x+25=7x-35 [/tex]

  • Simplify

[tex]{:}\longrightarrow[/tex][tex]\sf 7x-35=5x+25 [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf 7x-5x=25+35 [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf 2x=60 [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf x={\dfrac {60}{2}}[/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf x=30 [/tex]

[tex]\therefore[/tex]The number is 30.

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