Question

if x=2 y=3 is a solution of the 3x+by=21 find the value of b,
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Answer 1

x=2

y=3

3x+by=21

3×2 + 3b = 21

6+3b = 21

3b = 21-6

3b = 15

b = 15/3

b = 5

Hope this will help...

Answer 2

b=5

Step-by-step explanation:

3x+by=21

3×2+b×3=21

6+3b=21

3b=21-6

3b=15

b=15/3

therefore, b=5

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