Marinavina23
Marinavina23
02-02-2016
Mathematics
contestada
7x+6y=21
X+3y=-12 what is the answer
Respuesta :
Panoyin
Panoyin
02-02-2016
7x + 6y = 21 ⇒ 7x + 6y = 21
1x + 3y = -12 ⇒ 2x + 6y = -24
5x = 45
5 5
x = 9
x + 3y = -12
9 + 3y = -12
- 9 - 9
3y = -21
3 3
y = -7
(x, y) = (9, -7)
Answer Link
VER TODAS LAS RESPUESTAS ( 57+ )
Otras preguntas
Russia, the ottoman empire, the mughal empire and the ming dynasty all had what in common?.
Embedding a video into a speech about homeless in America fulfills which guideline for informative speaking?
Match the correct term below to it's description. Question 1 options: Line Organic Form Elements Shape 1. The language used to communicate in art. 2. A mark
Change this active sentence to passive voice: They will have completed the new bridge by March They are going to arrest me. An American writer wrote this novel
Evaluate the expression when c=12 c+5
As cells grow, they need an increasingly large ____________ to allow for the adequate exchange of wastes and nutrients as their ____________ increases.
Which of the following is not a Pythagorean triple? Which of the following is not a Pythagorean triple? (3, 4, 5) (9, 12, 15) (7, 24, 26) (5, 12, 13)
Consider the following equation. Fe2O3(s) 3H2(g) Right arrow. 2Fe(s) 3H2O(g) Delta. H = 98. 8 kJ, and Delta. S = 141. 5 J/K. Is this reaction spontaneous or non
The distance, y, in miles, traveled by a car for a certain amount of time, x, in hours, is shown in the graph below: A graph titled Motion of a Car is shown wit
PLEASE help me verify the identity!!
