Question

$if \: x = 5 \: and \: y = 2 \: find \: value$
$5x + 5y = 70$
​

Answer 1

$\huge\tt{Given:-}$

• x = 5
• y = 2

$\huge\tt{To \: check:-}$

• 5x + 5y = 70

$\huge\tt{Solution:-}$

$\sf L.H.S$ = 5x + 5y

$\sf Put \: value \: of \: x = 5 \: and \: y = 2$

➝ 5 × 5 + 5 × 2

➝ 25 + 10

➝ 35

⠀ ⠀⠀ ⠀ ⠀⠀ ⠀

$\sf R.H.S$ = 70

⠀ ⠀⠀ ⠀ ⠀⠀ ⠀

$\sf \color{lime} As, \: L.H.S ≠ R.H.S$

$\sf \color{lime} Hence, \: the \: given \: solution \: is \: not$

$\sf \color{lime} applicable \: for \: given \: equation.$

Answer 2

$\huge\mathcal{Answer:-}$

5x + 5y = 70

⠀ ⠀⠀ ⠀ ⠀⠀ ⠀

L.H.S = 5x + 5y

Put value of x = 5 and y = 2

= 5 × 5 + 5 × 2

= 25 + 10

= 35

⠀ ⠀⠀ ⠀ ⠀⠀ ⠀

R.H.S = 70

⠀ ⠀⠀ ⠀ ⠀⠀ ⠀

As, 35 ≠ 70

So, L.H.S ≠ R.H.S

$\therefore$ The solution given here is not applicable for above equation.