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

what is it called when oxygen passes into the capillaries that surround these sacs?
How did rationing support the war effort in ww2?
if cosx=1/12 and sinx>0 find tan2x
What is sociocultural ?
write 540 as a product of prime numbers
Approximately how many miles apart are Petrograd and Moscow ? A. 200 B. 350 C. 500 D. 650
what british policy did american colonists protest at the boston tea party
Serous membrane is what type? Epithelial or connective?
Find the surface area of a rectangular prism with a length of 6.9mm, a width of 8.2mm, and a height of 14mm.
What is a fraction name for 4