ymskids
ymskids
13-01-2015
Mathematics
contestada
how do you do x=2y+3
2x-3y=4
Respuesta :
luana
luana
13-01-2015
[tex] \left \{ {{x=2y+3} \atop {2x-3y=4}} \right. \\\\2(2y+3)-3y=4\\4y+6-3y=4\\4y-3y=4-6\\y=-2\\\\x=2\cdot(-2)+3\\x=-4+3\\x=-1\\\\ \left \{ {{y=-2} \atop {x=-1}} \right. [/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 96+ )
Otras preguntas
Which 3 units are used to measure both velocity and speed?
from the well we take out a bucket of water with volume V=5 litres where aproximately the work done is A=450J.How deep is the surface of the well's water?For ve
Given the relation of points, (7,-1),(3,5),(0,-4),(-2,-2), which of the points below would make this relation no longer a function? Choose only one. 1 point (-
Apply the distributive property to -8(y-1 1/8) to get an equivalent expression
which of the following products are a result of cotton crops
¿En qué profesion se trabaja con la ley?
What happened to Berlin and Germany after V-E Day?
You want to use the data from a function to make a prediction. Would a function generated by a mathematical rule or a function lacking a mathematical rule lead
An art class is making a mural for the school that has a triangle drawn in the middle. The length of the bottom of the triangle is x. Another side is 1 more tha
Question 3 (2 points) (06.01 MC) A concert organizer recorded the number of people in different age groups who attended a concert. She then created the followin
