Question

solve : x + 2y + 1 = 0 and 2x - 3y - 12 = 0.
Then find 3xy.
*​

Answer 1

Appropriate Question:

Miraj Mother is four times as old as Miraj. After five years, her mother will be three times as old as she will be then what are their present ages.

⠀⠀⠀⠀━━━━━━━━━━━━━━━━━━━━━━━━

Given: Miraj's Mother is four times as old as Miraj. After five years, her mother will be three times as old as she will be then.

Need to find: The present age of Miraj & Mother?

⠀⠀⠀⠀━━━━━━━━━━━━━━━━━━━━━━━━

❍ Let's Consider that Miraj age be x years. Then Miraj's mother age be 4x years.

¤ & After five years,

Miraj's age = (x + 5) years

Mothers age = (4x + 5) years

⠀

\underline{\bigstar\:{\boldsymbol{As\; per\:the\;given\; Condition\;:}}}

★AsperthegivenCondition:

⠀⠀⠀

As per given Condition, After five years Miraj Mother will be three times as old as she will be then. Now, Let's Solve the Question —

⠀⠀⠀

\begin{gathered}:\implies\sf Mother's\:age = 3\Big\{Miraj's\;age\Big\}\\\\\\:\implies\sf 4x + 5 = 3 \Big\{x + 5\Big\}\\\\\\:\implies\sf 4x + 5 = 3x + 15\\\\\\:\implies\sf 4x - 3x = 15 - 5\\\\\\:\implies\underline{\boxed{\pmb{\frak{\purple{x = 10}}}}}\;\bigstar\end{gathered}

:⟹Mother

′

sage=3{Miraj

′

sage}

:⟹4x+5=3{x+5}

:⟹4x+5=3x+15

:⟹4x−3x=15−5

:⟹

x=10

x=10

★

⠀⠀⠀

Therefore,

Miraj's age = 10 years.

Miraj's mother's age = 4(10) = 40 years.

⠀⠀⠀

∴ Hence, the present age of Miraj is 10 years and present of Miraj's mother is 40 years respectively. :)

Answer 2

hope it helps yo

have a nice day ahead ✌✌✌