funnypaige
funnypaige
22-05-2017
Mathematics
contestada
What's the answer on number 11
Respuesta :
mjankiewicz
mjankiewicz
22-05-2017
2x-y=7
2x+7y=31 |* (-1)
===
2x - y = 7
-2x-7y=-31
===
-y-7y=-24
-8y=-24 |:(-8)
y=3
2x-y=7
2x-3=7 |+3
2x=10 |:2
x=5
x=5
y=3
Answer Link
VER TODAS LAS RESPUESTAS ( 17+ )
Otras preguntas
Identify which of the below factors will achieve great results with your client:a. feedbackb. quality work
Psychological theories ________. a. organize scientific observations. b. explain observed facts. c. generate hypotheses d. do all of these things.
An often-repeated behavior that becomes almost automatic is a(an)a. action plan.b. value.c. habit.d. goal.
Joey earns $12 an hour. Blake earns $16 per hour. Joey receives a raise of $1.50 every six months, and Blake receives a raise of $0.50 every six months.. Which
What is 20% of 21??????
Creating advertising to appeal to consumer groups of varying lifestyles, attitudes, values, and behavior patterns is called ________ segmentation.
Select the three sports that have very little effect on strength and fitness: A. Bungee jumping B. Rock climbing C. BMX biking D. Snowboarding E. Sky diving F.
How does pressure affect surface tension
Ellen notices conspicuous examples of drunkenness around campus, which causes her to assume that everybody is drinking heavily. As a result, Ellen begins to eng
what is the sum of 9 and 53
