Question

(1) If 5x + 7y = 17 and 7x + 5y = 19, then what is the value of x + y ?

(A) 6 (B) 36 (C) 3 (D) 18​

Answer 1

Answer:

the x+y value of is B ,36

Step-by-step explanation:

5

$5x + 7x = 17 + 7x + 5x = 19$

$17 + 19$

$36$

Answer 2

$\huge \sf{ \orange{ \underline{ \pink{ \underline{A᭄ɴsᴡᴇʀ࿐ \ :-}}}}}$

let x =2 and y = 1

• 5x+7y=17
• 5×2+7×1= 17.

lets put the values in next equation.

• 7×2+5×1=19 -------- (here equation is satisfied so value of X=2 and Y= 1)

so, X+Y –> 2+1= 3

$\huge \sf{ \orange{ \underline{ \pink{ \underline{A᭄ɴsᴡᴇʀ࿐ = 3 \ :-}}}}}$