22-10-2016
Mathematics

contestada

6y+5x=8 x3y=-7 use substituion

Respuesta :

22-10-2016

Substitution:

6y + 5x = 8
x + 3y = -7

x = -3y + 7

6y + 5(-3y + 7) = 8
6y - 15y + 35 = 8
-9y + 35 = 8
-9y = -27
-y = -3
y = 3

x = -7 + 9
x = 2

y = 3
x = 2

Answer Link

Otras preguntas

Which word in the sentence, if any, should be followed by a colon? That house is painted in many colors forest green, pumpkin orange, and dark brown. A. There i

Which description of sisters Sarah and Angelina Grimké is accurate? A. They were mill workers who organized the first textile employees' union. B. They were Qua

what goal did Japan fail to achieve during world war 1 leaving it open to further military engagement 20 years later?

In the latter stages of the Civil War, who was given the responsibility of winning the war for the North?

The perimeter of a bedroom door is 26 feet. The door is 4 feet wide. How tall is it?

Identify the subordinate clause in the sentence as a noun, adverb, or adjective clause. 1)Did anyone ask her what sort of present she would like for her birthd

Which is the equation of the line? A. –4x + 7y = 28 B. 4x + 7y = –28 C. 4x – 7y = 28 D. –4x – 7y = –28 A??

What pharmacy tech Sig code mean dot over tt

How did the Nullification Crisis reflect Andrew Jackson's policies? Jackson supported a strong central government to enforce federal laws. Jackson thought state

Which sentence uses the demonstrative correctly? A. Did You ask dad if he was finished reading that newspaper before You Cut It up for your science project? B.