Question

A) Find the value of k if x=2, y=1 is a solution of the equation 2x+3y=k
B) if the point (-2,5) lies on the graph of the equation ax + 3y = 7, find the value
of a.​

Answer 1

Answer:

$x = 2 \: \: y = 1$

so,

2x + 3y = k

put the value of x and y

2(2)+3(1) = k

4+3 = k

7=k

k= 7

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