Is (3,-3) a solution to the system 5x+4y=3, 2x-5y=19 need to be taught step by step and you.

(3,-3) is not a solution of the given system.

Solution:

The equations given in the problem are,

----- (i)

------------ (ii)

Now if (3,-3) is a solution of the system then both equation will satisfy by substituting the value of x as 3 and y as -3. If any of the equation does not satisfy with (3,-3) then this is not the solution i.e. the given value should satisfy both the equations to be a solution.

So, now substituting value of (x, y) as (3,-3) on equation (i) we get

Here, --- (a) (satisfies the first equation)

Again substituting value of (x, y) as (3,-3) on equation (ii) we get

Here, --- (b) (does not satisfy the second equation)

From (a) and (b) we can conclude that the value (3.-3) does not satisfy the second equation. So, this is not a solution of the system.

step-by-step explanation:

i am not sure sorry : c

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step-by-step explanation: