stacy62202
stacy62202
12-05-2016
Mathematics
contestada
3x + 7y =47
-4x +7y =19
Respuesta :
JonathanHagen
JonathanHagen
24-11-2016
3x+7y=47
-1(-4x+7y=19)
Distribute the -1 and add the equations together...you'll get:
7x=28
x=4
Plug X=4 back in...
12+7y=47
7y=35
y=5
Answer Link
VER TODAS LAS RESPUESTAS ( 18+ )
Otras preguntas
write an expression for the calculation double 2 and then add5
A temperature of –25°C is equivalent to: A. 248 K. B. 25 K. C. –25 K. D. 298 K.
Sally paints a room in 6 hours while it takes Steve 9 hours to paint the same room. how long would it take them to paint the room if they worked together
What is the value of m in the equation 1/2m - 3\4n = 16 , when n = 8?
After Salome dances for Herod, he offers her one half of his ____, but instead of his kingdom she asks for the head of John the Baptist. A. travesty B. domain C
Which statement presents an unsound argument? Women are capable of working as firefighters because many are employed in cities across the United States. Women s
add the like terms: -3ab+-10a+-8a
The greatest fear of the rulers of the Austria Hungarian empire was that
The unblocking of popular social media websites in Myanmar is an indication that
The fire swallowed up the house before the firefighters arrived. a. hyperbole b. simile c. personification d. metaphor
