ilovecandy1
ilovecandy1 ilovecandy1
  • 16-01-2017
  • Mathematics
contestada

Solve using elimination

-8x - 7y = 7
-9x - 7y = 14

Respuesta :

narwhalslippers
narwhalslippers narwhalslippers
  • 16-01-2017
x=-7 is what I got :/.
Answer Link
doodle10 doodle10
  • 16-01-2017
-9x - (-8x-7) = 14
-9x +8x +7 = 14
-x + 7 = 14
7 = 14 + x
X = - 7

(-8 x - 7) - 7y = 7
56 - 7y = 7
56-7 = 7y
49 = 7y
7 = y

Answer x=-7 and y=7
Answer Link

Otras preguntas

Explain different methods used to prevent salinity?
who created god ? i really want to know this one
please help. my homework is due soon
Define the term poverty threshold.
Was the French Revolution Successful?1-3 paragraphs A clear topic sentence that is connected to your thesis statementAt least two pieces of evidence (quotes) th
Biodiversity can include genetic diversity within a population or variation of populations within an ecosystem. Given this information, which of the following i
Idioms are usually distinctive words or phrases used consistently in all parts of the country. true or false
Select the correct answer to identify the prepositions in each sentence. From our cottage on the hill, we could see the skyline of the city beyond. a. on, of, b
Which term means the letter combination that illustrates a trait? A. genotype B. phenotype C. allele D. hybrid
Which of the following statements best sums up the author’s point of view?