−5x + y = −3
3x − 8y = 24

x = 0

y = -3

Step-by-step explanation:

-5x + y = -3 (I)

3x - 8y = 24 (II)

Multiply the equation (I) by 8

(I)*8    - 40x + 8y = -24

(II)         3x -  8y   =  24   {Add and y will be eliminated}

           -37x          = 0

                     x     = 0

Plugin x = 0  in equation(I)

-5*0 + y = -3

     0 + y = -3

           y = -3

- 5x + y =-3    1

3x -8y = 242

eqn 1 is multiply by 8 .we get -40 x +8y=-24 3

-40 x +8 y =-24 3

3 x   - 8y  = 24     2

·································

-37 x +0 = 0

··························

x =0

put x = 0 in equation 2

3 x -8 y =24

3×0 -8 y = 24

0 -8 y=24

-y =24÷8

-y =3

y = -3

ans ;

x = 0

y = -3

Step-by-step explanation:

one of each metals

step-by-step explanation:

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.