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 ( 23+ )
Otras preguntas
Can someone pretty please help me? The problem: Write about a real-world situation that can be solved using a two-step equation.
radius: 12 diameter: 24 inches circumference: area:
What was the controversy surrounding the creation of the Transportation Safety Administration? The agency was not monitoring airport security carefully enough a
Questions: 1. What is your weather forecast? 2. Was your forecast correct? If so, explain why you think you came to the correct conclusion. If not, explain w
How to differentiate y=x^ln7 ?
The revolutionaries disliked the Church for many reasons. Which of the following is not one of those reasons? A. The Church was too wealthy. B. Church leaders w
Why did Mesopotamian farmers set up irrigation systems
what is 7.87 rounded to the nearest tenth
2a=8 , a+b=2 use the substitution method to solve the linear system
Identify the nation that exerted imperial control over India, impacting their language and religious beliefs. A. China B. Germany C. Britain D. Argentina
