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 ( 93+ )
Otras preguntas
Lynne bought a bag of grapefruit, 1 5_ 8 pounds of apples, and 2 __3 16 pounds of bananas. The total weight of her purchases was 7 1_ 2 pounds. How much did the
Read the sentence and choose the option with the correct amount in the sentence. Los departamentos cuestan 700.590 pesos. Setecientos mil quinientos noventa S
Sally's pet store sells goldfish. The fish they sell, every goldfish needs 4 gallons of water in the tank. Frank's pet store sells goldfish as well. At Frank's
non examples of chemical formulas
william runs 40 yards in 4.5 seconds. at the same pace how long will he take to run 100yards?
Ryan ordered some books online and spent a total of . Each book cost and he paid a total of for shipping. How many books did he buy?
In your role, you are responsible for making sure that delivery trucks depart from the building on time. When a truck arrives late, the company must pay to upg
What does Winthrop mean by “charity”?
can you help me right now?
Why do we not feel air pressure?
