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 ( 21+ )
Otras preguntas
Characteristics of expository prose include _____. sentences and paragraphs stanzas and lines technical terms plot and characters
what is the lowest common multiple of two numbers that have no common factors greater than 1? give an example.
Compared with earlier presidents , modern presidents are moved involved in?
supplicate A. to give B. to answer C. to beseech D. to ignore
Which sentence uses punctuation correctly? A. My cousin, because she hopes to become a doctor, volunteers at the local clinic every weekend. B. Because she hope
What is the mean of the data set? 12 18 26 12 32 A. 12 B. 18 C. 20 D. 22
What is the next fraction in the geometric sequence 3/4 1/2 1/3 2/9
the eatery restaurant has 200 tables on a recent evening there were reservations for one tenth of tables how many tables were reserved
What is the solution to 6.6-1/3 with out using a calculator
Which pronoun correctly completes the sentence? __________ has sent these lovely flowers? A. Who B. Whom
