Question

if k,3 is solution of equation 2x+5y=17 then find k​

Answer 1

Question:-

If (k,3) is solution of equation 2x+5y=17 then find k.

Solution:-

Given equation ,

• 2x + 5y = 17

Solution coordinate of the equation is (k,3) .

Therefore , x = k and y = 3 .

According to the question ,

→ 2k + 5×3 = 17

→ 2k + 15 = 17

→ 2k = 17 - 15

→ 2k = 2

→ k = 2/2

→ k = 1

★ Hence , the value of k is 1 .

_____________________

Verification:-

If k = 1 , then

2× 1 + 5 × 3

= 2 + 15

= 17 .

*Proven*

Answer 2

Answer:

2x+5+5y=17.

2(k)+5(3)=17

2(k)+15=17.

k=15-17.

2k=2.

k=2/2.

k=1.