Question

If (5, a) is solution of 3x - 2y + 5 = 0 then a = (A) 10 (B)-10 (C) 20 (D) -20​

Answer 1

Answer:

answer is 'C' (2,0)

3(2)+2(0)=6

6+0=6

5(2)+2(0)=10

10+0=10

10+10 = 20

Step-by-step explanation:

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Answer 2

Answer:

a=10

Step-by-step explanation:

(x,y)=(5,a)

x= 5

y=a

3x - 2y + 5 = 0

3×5 -2a+5=0

15-2a+5=0

15-2a=0-5

-2a=-5-15

-2a=-20

a=-20/-2

a=10

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