bmgtcreative
bmgtcreative
02-05-2018
Mathematics
contestada
system of equations
y=2x-3
x+y=18
Respuesta :
mamercier21
mamercier21
02-05-2018
2x-3=-1x+18
+1x +1x
3x-3=18
+3 +3
3x=21
divide both sides by 3
x=7
Answer Link
VER TODAS LAS RESPUESTAS ( 19+ )
Otras preguntas
the coordinates of point A are (-6, 4). the coordinates of point B are (3, 4). which expression represents the distance, in units, between points A and B?
What's the difference between Romanesque and Gothic style buildings?
the coordinates of point A are (-6, 4). the coordinates of point B are (3, 4). which expression represents the distance, in units, between points A and B?
1) Elizabeth works part-time to help pay for college. She has worked for the last 14 days without a day off for a total of 48 hours. Depending on her schedu
please help Evaluate the expression when r = 8.2 and s = –3.7. r – 2s A. –22.94 B. 0.8 C. 4.5 D. 15.6
find the following sum and prove your claim: (1*2)+(2*3)+..+n(n+1).
please help Evaluate the expression when r = 8.2 and s = –3.7. r – 2s A. –22.94 B. 0.8 C. 4.5 D. 15.6
a town had about 2120 acres of pine trees 40 years ago. Only about 13% of the pine trees remain. How many acres of pine trees remain
What is x^2+8x-5 in vertex form? Please explain.
PLEASE HELP IS THE OLD YELLER !!!!!!!!!!!! When does Mrs. Coates first demonstrate that she recognizes Travis is taking on his father's role? A. when Travis go
