Question

Solve for y in the following system of equations.
-4x - 10y = 20
32x + 6y = -12
-2 -4
2 4
please help me ...... free metal for best answer

Answer 1

-4x - 10y = 20 -->(8)
32x + 6y = -12
-----------------
-32x - 80y = 160 (result of multiplying by 8)
32x + 6y = -12
-----------------add
- 74y = 148
y = -148/74
y = - 2

Answer 2

any questions ?

Answer 3

x=0
y = 2

Answer 4

hmm..lets check...x = 0 and y = 2
-4x - 10y = 20
-4(0) - 10(2) = 20
-20 = 20 (no it does not)
hazem....y is not 2, it is -2