Question

-3x - 4y = 4
--5x + y = 2
Is (2, 10) a solution of the system?

Answer 1

No, Not a solution.

Explanation:

`- 3x - 4y = 4 \\ - 5x + y = 2 \\ - 3x = 4 + 4y \\ - x = (4)/(3) + (4y)/(3) \\ 5( (4)/(3) + (4y)/(3) ) + y = 2 \\ 6.67 + 6.67y + y = 2 \\ 7.67y = - 4.67 \\`

`y = - 0.608 \\ x = - (4)/(3) + 0.811 \\ x = - 0.522`