Question

is (-3,4) a solution of 3x-7y=16?

Answer 1

3x-7y=16


3(-3)-7(4)=16


-9-28=16


-37=16 ... which is false


So (-3,4) is NOT a solution to 3x-7y=16

Answer 2

aaahhhh I see thanks :D

Answer 3

substitute the given value of x and y to the equation..and if its not equal with the constant term..it is not the value of x and y..

Answer 4

yep, just plug in the corresponding values, evaluate/simplify and see if the final equation is true or not