Question

x=5 and y = -2 is a solution of the linear equation;
(a) 2x+y = 9
(b) 2x - y = 12
(C) x + 3y = 1
(d) x + 3y = 0​

Answer 1

Step-by-step explanation:

$2(5) + ( - 2) = 9 \\ 10 - 2 = 9 \\ 8 = 9 \\ = 9 - 8 \\ = 1 \\ \\ \\ 2(5) - ( - 2) = 12 \\ 10 + 2 = 12 \\ 12 = 12 \\ = 12 - 12 = 0 \\ \\ \\ 5 + 3( - 2) = 1 \\ 5 - 6 = 1 \\ - 1 = 1 \\ = 2 \\ \\ \\ \\ 5 + 3( - 2) = 0 \\ 5 - 6 = 0 \\ - 1 = 0 \\ = 1$

Hope it helps u

Answer 2

Answer:

x = 5 , y = -2 is solution of the linear equation

(a) 2x + y = 9 (b) 2x – y = 12

(c) x + 3y = 1 (d) x + 3y = 0