Question

Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this.
4x + 10y = -1

8x – 6y = -15

Answer 1

-8x(4x +10y)= -1
4x(8x - 6y)= -15

-32x-80y = 8
+32x-24y= -60

-104y = -52
-104y/-104y = -52/-104
Y = .5 or 1/2

Substitute .5 into first original equation.
4x + 10(.5) = -1
4x + 5 = -1
4x +5 -5 = -1 - 5
4x = -6
4x/4 = -6/4
x = 1.5

Answer 2

is this right

Answer 3

x = -1.5, NOT 1.5
Y is correct

Answer 4

pk51 is correct

Answer 5

ty