emilyy3 emilyy3

12-01-2016
Mathematics

contestada

X= y-2
2x+3y=21
Solution_______

Respuesta :

Billymkhoi Billymkhoi

12-01-2016

x= y-2

2x+3y=21
⇒ 2(y-2)+3y=21
⇒ 2y-4+3y= 21 (distributive property)
⇒ (2y+3y)-4= 21 (combine like terms)
⇒ 5y= 21+4
⇒ 5y= 25
⇒ y= 25/5
⇒ y= 5

The final answer is y=5~

Answer Link

Otras preguntas

Salim is writing a paragraph comparing and contrasting the Maori and Haida cultures. Which sentence best illustrates his point about how each group views human

What is a characteristic of a person with positive mental well-being?

The less internal heat a jovian planet emits the more it stirs up its clouds. a. True b. False

What is the probability of rolling a 6-sided die and getting a 2 or an odd number?

Does it matter whether contingent workers and core employees are performing the same jobs

According to montesquieu, who should exercise executive power? who should exercise legislative power? why?

Based on Burgos’s account, why do you think the Japanese separated American and Filipino prisoners? Select the most likely answer. Japanese soldiers believed t

What language is older spanish or catalan?

Two sides of a triangle are equal in length and double the length of the shortest side. The perimeter of the triangle is 35 inches.

Which of the following is the proper unit for measuring power? Newton Joules Watts Meters