macipope
macipope macipope
  • 26-10-2016
  • Mathematics
contestada

Answer correct for brainliest and also get a thanks ! :-) please help !!

Answer correct for brainliest and also get a thanks please help class=

Respuesta :

texaschic101
texaschic101 texaschic101
  • 26-10-2016
y = x - 7....so sub in x - 7 for y in the other equation

5x + 2y = 7
5x + 2(x - 7) = 7
5x + 2x - 14 = 7
5x + 2x = 7 + 14
7x = 21
x = 21/7
x = 3

y = x - 7
y = 3 - 7
y = -4

solution is (3,-4)
Answer Link

Otras preguntas

What effects does hydrogen bonding and polarity have on water?
What element on the periodic table has no stable isotope?
25 percent of n except
Why are carbohydrates are used as a source of quick energy rather than fat?
Find the GCF [tex]32xy-18 x^{2} [/tex]
A photocopy machine can reduce copies to 82% of their original size. If a page is reduced to 82% what percent enlargement is needed to return it to its original
the particle that is identical to a high energy electron is known as a(n) _____.
How do you Identify the opposite and the absolute value of a rational number?
what mountain range has the highest peak in asia and where
1. Quando absorvido pelos pulmões, o monóxido de carbono reduz a habilidade do sangue no transporte do oxigênio pelo corpo. Este fato ocorre devido à formação