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 ( 15+ )
Otras preguntas
Solve 27=y³ where y is a real number
1. Human evolution was shaped by
When determining the causes of behavior, nothing other than a causal variable could be responsible for the observed effect. According to Cook and Campbell (1979
True or false Controlled experiments can be randomized or nonrandomized
In the diagram, △A’B’C’ is an image of the △ABC. Which rule describes the translation? PLEASE HELP SOMEONE!!
how are sperm cells adapted for their functions
What concepts were developed in the ancient world to make sure trade was fair?
List the factors that could affect the growth rate of grasses.
Change these sentences into the plural form. 1. Is that a wallet over there? 2. This isn't Kevin's business card. 3. Is this your newspaper? 4. This is a nice
What fraction is greater than C on the given number line above? 1 1/3 2 2/5 3 1/4 4 1/5
