Question

Solve each system of equations without graphing. Show your reasoning.

-8x – 2y = 24

5x-3y=2



Need answer fast

Answer 1

Explanation:

-8x-2y=24.............equation 1

5x-3y=2..................equation2

5x=2+3y

x=2/5+3y/5................equation3

putting equation 3 in 1

-8(2/5+3y/5)-2y=24

-34y=136

y= -4 ................ equation 4

putting equation 4 in 1 or 2

5x-3y=2

5x-3*-4=2

5x=14

x=14/5 and y=-4

Answer 2

-8x – 2y = 24

5x-3y=2

per combination

-3(-8x – 2y = 24)

+2(5x-3y=2)

24x+6y=-72

10x-6y=4

34x=-68

x=-68/34=-2

we calculate y:

5x-3y=2

5*-2-3y=2

-10-3y=2

-3y=2+10

y=-12/3 =-4

S(-2;-4)

Explanation: