Question

write four solution for each of the following equation x+y=4. x-2y=6. y=2x. y=x​

Answer 1

Answer:

$x + y = 4 \\ 1 + 3 = 4 \\ 2 + 2 = 4 \\ 3 + 1 = 4 \\ 4 + 0 = 4$

$x - 2y = 6 \\ 18 - (2 \times 6) = 6 \\ 12 - (2 \times 3) = 6 \\ 6 - (2 \times 0) = 6 \\ 24 - (2 \times 9) = 6$

$y = 2x \\ 12 = 2 \times 6 \\ 14 = 2 \times 7 \\ 16 = 2 \times 8 \\ 18 = 2 \times 9$

$y = x \\ 4 = 4 \\ 3 = 3 \\ 2 = 2 \\ \frac{1}{2} = \frac{2}{4}$