Izab15
Izab15
02-11-2017
Mathematics
contestada
Elimination
4x+5y=-15
-3x-2y=13
Respuesta :
Dreamer4102001
Dreamer4102001
04-11-2017
multiply the first equation by 3 and tge second by 4:
12x+15y=-45
-12x-8y=52
then add the equations:
0x+7y=7
7y=7
y=1
so 4x+5(1)=-15
4x+5=-15
4x=-20
x=-5
Answer Link
VER TODAS LAS RESPUESTAS ( 14+ )
Otras preguntas
Cameron and Casey go out to lunch. If their food and beverages cost a total of $22.50, and there is 9% meals tax, how much is the bill after the tax is added? L
Solve for x: 7x - 3x + 11 = 27
what is this(9 + 4) × (8 -7)
NEED THIS DONE ASAP HELP
I really need help,please!!
What is the velocity of a missile that travels north 8000 meters in 10.12 seconds
Which of these is a ratio table?
A researcher is trying to classify two cells as prokaryotic or eukaryotic. The characteristics of the two cells are given in the table. Feature Cell A Cell B ri
Problemas de matemáticas :((solo pongan el resultado pls)
!!HELP 15 POINTS AND BRAINLY!! What were these slavers primarily interested in? cultural diversity financial gain equal opportunity international travel
RELAXING NOICE
