mathishard5656 mathishard5656
  • 16-01-2017
  • Mathematics
contestada

x-2y=4. -3x+5y=-3. solving linear systems using multiplication and addition show your work

Respuesta :

bcalle
bcalle bcalle
  • 16-01-2017
-3x+5y=-3
3x -6y= 12
Multiplied the first equation by 3 so the x's will cancel.
Adding the two equations we get
-y=9
y=-9
Now plug y back in to either equation and solve for x. x-2(-9)=4
x+18=4
x=-14
(-14,-9)
Answer Link

Otras preguntas

Why does land heat up more faster than water?
C(squared)L(squared) + 100v(squared) = 100c(squared)I have to solve for L
Why does land heat up more faster than water?
What is the quotient of -1 4/5 and 2 1/4?
Search results for "A shipment of 18 cars, some weighing 3,000 pounds, and the others weighing 5,000 pounds each. Together the shipment has a total weight of 30
How does 4/15=14/n? What does n equal?
What is the quotient of -1 4/5 and 2 1/4?
Search results for "A shipment of 18 cars, some weighing 3,000 pounds, and the others weighing 5,000 pounds each. Together the shipment has a total weight of 30
What is the quotient of -1 4/5 and 2 1/4?
Search results for "A shipment of 18 cars, some weighing 3,000 pounds, and the others weighing 5,000 pounds each. Together the shipment has a total weight of 30