kit0058
kit0058
02-03-2017
Mathematics
contestada
solve by elimination
Respuesta :
roseberline
roseberline
02-03-2017
2x - 2y = -4
-3x -3y = 0
_____________________
-1x - 5y = -4
Answer Link
H1a2r3s4h5
H1a2r3s4h5
02-03-2017
2x-2y=-4
Multiply eq.by 3
6x-6y=-12
-3x-3y=0
Multiply eq.by 2
-6x-6y=0
from both new eq.
6x-6y=-12
-6x-6y=0
So adding both eq. We get
-12y=-12
So y=1
From eq.1
2x-2y=-4
2x-2(1)=-4
2x-2=-4
2x=-4+2
2x=-2
x=-1
so x=-1 and y=1
Answer Link
VER TODAS LAS RESPUESTAS ( 39+ )
Otras preguntas
Please need help thank
Order the set of integers from greatest to least.{-8, 32, 55, -32, -19, -3}
1. Read this sentence from paragraph 33. “Every student here today was handpicked for both academic and political excellence.” What does the speaker mean by the
Which of the following was the main reason for US concern over the Persian Gulf War? a The US believed the war would make Iraq a hotbed for terrorism. b The US
Which era did we live on in 2008
What is the correct translation of the phrase "I just got here"? A. j'arrive B. Je suis arrivé C. Je vais arriver D. je viens d'arriver
a-4=22 find the value of the variable
Describe how to use the Vertical Line Test and what it can tell us.
The Steckels decide to spend less on food and entertainment in order to put more money into savings. Which graph could represent the Steckels’ new budget?
stroma plant? explain
