Steph23465
Steph23465
04-02-2016
Mathematics
contestada
Y=-2x-6
Y=x+9
Elimination method
Respuesta :
apologiabiology
apologiabiology
04-02-2016
so we have
y=-2x-6
y=x+9
elimination
multiply second by e
2y=2x+18
just add them
y=-2x-6
2y=2x+18 +
3y=0x+12
3y=12
divide by 3
y=4
subsitue
4=x+9
subtract 9
-5=x
x=-5
y=4
Answer Link
VER TODAS LAS RESPUESTAS ( 42+ )
Otras preguntas
what ideas generated by the american enlightenment and the great awakening prompted challenges to religious, social, and political authorities in the british co
If 9x+2y2−3z2=132 and 9y−2y2+3z2=867, then x+y = (A) 105 (B) 110 (C) 111 (D) 120 (E) 129 PLS HELP BIG YELLOW
I don't know what to do
A cashier has 52 bills in her cash drawer made up of $10 bills and $5 bills. The value of the bills is $320. How many $5 bills are in the drawer?
Explain how family relationships can help or hurt a person's development.
what different people ruled india?
A first hand report or eyewitness account is an example of what type of data source ? Primary Secondary Oral histories
Adam Smith’s ideas that are present in the day-to-day workings of the US economy include all of the following EXCEPT: A. invisible hand B. specialization C. tra
If an object emits or reflects light
I have so many unanswered questions. Here is one that I am studying for. What is the difference between a ecosystem and a community?? ANSWER AS FAST AS POSSIBLE
