Question

If 3x+ay=7, find the value of a (given, x=3,y=4)

Answer 1

Answer:

$3x + ay = 7 \\ 3 \times 3 + a \times 4 = 7 \\ 9 + a \times 4 = 7 \\ 9 \times 4 + a = 7 \\ 36 + a = 7 \\ a = 7 - 36 \\ a = - 29$

Answer 2

Answer:

a = -1/2

Step-by-step explanation:

3x + ay = 7

Putting x = 3, and y=4

3 ×3 + a ×4 = 7

4a = 7 - 2

4a = -2

a = -2/4

a = -1/2

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