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 ( 72+ )
Otras preguntas
Which word is the indefinite pronoun in this sentence? Mrs. Ortiz wondered whether both her daughters would like to take a trip to the Grand Canyon. A. would B.
Name the following ionic compounds: CaCO3 ZnS CuOH Mg(ClO4)2
Which sentence uses the word among or between incorrectly? -The last baseball game of the season is always among the biggest rivals. -Last year there were nine
Write a balanced equation for each of the following reactions: the reaction of solid lithium with nitrogen to form solid lithium nitride. the reaction between a
Which sentence uses the word among or between incorrectly? -The last baseball game of the season is always among the biggest rivals. -Last year there were nine
Market performance in the United States is tracked using stock , which use formulas to calculate price changes.
Which personal pronoun best completes the sentence? How is it used? At first they wouldn't admit to the deed, but later they said, "The ones who did it are ____
which quantity can be calculated for a solid compound, given only the formula of the compound and the Periodic Table of elements
Translate the phrase into a math expression. 12 less than twice a number A. 2 · (n – 12) B. 2 · n - 12 C. 2 · n ÷ 12 D. 12 – 2 · n
The legislative branch can declare a law unconstitutional can grant pardons for federal crimes can declare war can appoint federal judges
