tweety1 tweety1
  • 02-02-2015
  • Mathematics
contestada

x+y=10 x-y=20 how do you solving systems of equations with elimination

Respuesta :

konrad509
konrad509 konrad509
  • 02-02-2015
[tex]x+y=10\\ \underline{x-y=20}\\ 2x=30\\ x=15\\\\ 15+y=10\\ y=-5\\\\ \boxed{(x,y)=(15,-5)}[/tex]
Answer Link

Otras preguntas

Convert 35kg to its equivalent in g using dimensional analysis
Express 230 in scientific notation
Express 230 in scientific notation
What two numbers has a lcm of 50
On a TI-84, how do you stop it from giving you simply a number for an answer when you put in a polynomial divided by another polynomial?
How to calculate 100MB at 56 Kbps to transfer time?
There are two ways of adding two square numbers to make 65. Write a different square number in each box. [ ] + [ ].
the blueprint for landscaping a yard has a scale of 1/2" to1 foot. if the blueprint is a rectangle 18 inches by 22 inches,what are the dimensions of the yard?
Antonio sold a hat for $18. His wholesale cost was $8. What was the percent markup?
Translation: how long has it been?