Question

Is x = 4 and y = - 2 a solution of x + 7y = 5? yes or no​

Answer 1

${\huge{\sf{\green{\underline{\underline{Solution}}}}}}$

put the value of x = 4 and y = -2 in equation x + 7y = 5

4 + 7(-2) = 5

4 - 14 = 5

-10 = 5 ,

Answer 2

Answer:

x+7y = 5

= 4 + (7 x (-2))

= 4+(-14)

= -10

x+7y = 5

No, his statement is not true

x+7y = -10