kara30
kara30
04-09-2017
Mathematics
contestada
helppppppppp!!!!!!!!!!!
Respuesta :
mreijepatmat
mreijepatmat
04-09-2017
- 9y + 6x = 7 (a)
+9y - 8x = 9 (b)
Add a) + b)
- 9y + 6x = 7 (a)
+9y - 8x = 9 (b)
----------- -------
0y - 2x = 16
Solve for x:
-2x = 16
2x = -16
x = - 8.
Now replace x = 8 in either a) or b) and you will find y = -55/9
Answer Link
VER TODAS LAS RESPUESTAS ( 34+ )
Otras preguntas
what is it called when the species change over time
What are the reasons for not increase in height
Tomorrow, the mayor will announce her plans "for the new committee." what type of phrase is this?
5+5(x+4) less than or equal to 20
Reid ate 1/4 if pie, joe ate 1/3 of pie. How much was left after they both ate their pieces
Solve for x. 2x^2+12x+11-(x+4)^2
which is the main way a representative democracy differs from a direct democracy
Number like 10,100,1000,and so on are called____
Write each ratio or rate as a fraction in simplest form. 9 inches of rain in 30 days
6.88 written as a percent
