michelle202 michelle202
  • 02-02-2018
  • Mathematics
contestada

How do you solve these systems by elimination level 3

How do you solve these systems by elimination level 3 class=

Respuesta :

anchitthawi
anchitthawi anchitthawi
  • 02-02-2018
x+y = -3 ---(1)
5x-2y = -50 ---(2)

5x+5y = -15 ---(3) (multiplied (1) by 5)
5y-(-2y) = -15-(-50) ((3)-(2))
7y = 35
so y = 5

then x+5 = -3
so x = -3-5 = -8
Answer Link

Otras preguntas

A number is squared. The result is squared, then that result is squared. The final number is 6561
Assuming you slept eight hours per day how many hours you have left for other activities during the week?
I need quick help [25 points] Why does Mathilde want to wear a fancy dress and jewelry to the party? Because she goes to a lot of parties and likes to dress up
I need help solving this question
The PV cell is made of two thin layers of___?
please help me with this problem. image attached.
How is electron movement related to the bonding in sodium chloride? A) The atomic orbitals overlap and share electrons causing an ionic bond to form. B) Ele
Lake Superior, Lake Michigan, Lake Huron, Lake Erie, and Lake Ontario make up the Great Lakes.true or false
Good?? Or something else ?
Some insects can stand on the surface of water because water - f has a high specific heat g is cohesive and adhesive h has a high boiling point j is a good evap