janessa1
janessa1
07-01-2016
Mathematics
contestada
what is -4x+7x=-38 8x+7y=34
Respuesta :
Billymkhoi
Billymkhoi
07-01-2016
-4x+7x= -38
⇒ 3x= -38
⇒ x= -38/3
8x+7y= 34
⇒ 8*(-38/3)+ 7y= 34
⇒ 7y= 406/3
⇒ y= (406/3)/7
⇒ y= 58/3.
The final answer is
x= -38/3, y= 58/3
~
Answer Link
VER TODAS LAS RESPUESTAS ( 55+ )
Otras preguntas
A total of 1.4 moles of sodium nitrate is dissolved in enough water to make 2.0 liters of an aqueous solution. The gram-formula mass of sodium nitrate is 85 gra
What was the overall aim of the liberal reforms of 1800s
over three fourths of the middle east is desert. where is the sahara desert located
How did the U.S. government respond to entrance into World War II? a. by passing laws against antiwar protests b. by eliminating segregation in the military c.
Should the United States be praised or criticized for the military strategy of "Europe First"?
why did immigrants and rural migrants move to cities?
A total of 1.4 moles of sodium nitrate is dissolved in enough water to make 2.0 liters of an aqueous solution. The gram-formula mass of sodium nitrate is 85 gra
Supreme Court Justices are appointed for life (until they die or choose to retire). Discuss the pros and cons of this policy.
Which part of the atom determines its chemical properties? A. electron B. neutron C. nucleus D. proton
please help Colin , Dave and Emma share some money Colin gets 3/10 of the money Emma and Dave share the rest of the money in the ratio 3 : 2 what is Dave's sha
