Question

please give me its answer​

Answer 1

Answer:

X+y=81...equ1

4x+5y=0...equ2

4(x+y=81)=4x+4y=324...equ3

4x+5y=0...equ4

Soequ3-equ4

Y=324....equ5 apply in equ1

X+324=81

X=-243

Answer 2

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दो संख्या का जोड़ = 81

अनुपात = 4:5

$\textbf{</strong><strong>Question</strong><strong>:</strong><strong>-</strong><strong>}$

दोनों संख्या बताओ ?

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माना संख्याएं है = 4x & 5x

A/q,

4x+5x = 81

9x = 81

$\huge{</strong><strong>X</strong><strong>=</strong><strong>\frac{</strong><strong>8</strong><strong>1</strong><strong>}{9}}$

$\huge{</strong><strong>X</strong><strong> </strong><strong>=</strong><strong> </strong><strong>9</strong><strong>}$

संख्याए = 4x = 4*9 = 36 & 5x = 5*9 = 45 (उत्तर)