LuisaMadigan448 LuisaMadigan448
  • 24-06-2015
  • Mathematics
contestada

Solve for both systems: 2x + 5y = 24 and - 2x + 3y = 40

Respuesta :

ImpatientAngel
ImpatientAngel ImpatientAngel
  • 24-06-2015
Good Luckys...................
Ver imagen ImpatientAngel
Answer Link
Azgarok
Azgarok Azgarok
  • 24-06-2015
[tex]\begin{cases} 2x+5y&=24(1)\\ -2x+3y&=40(2) \end{cases} (1)+(2) : 8y=64 \Rightarrow y=\frac{64}8=8\\(1) : x=\frac{24-5y}2=\frac{24-5\cdot8}2=-8 \\\boxed{x=-8,y=8}[/tex]
Answer Link

Otras preguntas

what was the primary religion of spain in 1519
if you know a factor of a number, can you find another factor? Explain. (please help!!)
what is the prodeut of 289 and 7
how to remember golgi apparatus
What are three equivalent ratio for 12/14
Write the ratio 3 ft to 7 yd as a fraction in simplest form
if you travel 90 miles in 1 3/4 hours which of the following is amount time it would take you to travel 360 miles
how do I wright 234,164 in expanded form
The African slave trade helped in the advancement ofcrops.agricultural techniques.medical knowledge.All of the above.
what is 1,995,298 rounded to the nearest 10,000