suareza36 suareza36

20-01-2016
Mathematics

contestada

Solve each system of liner equations

y=2x+1
x+2y=17

pls help!

Respuesta :

Billymkhoi Billymkhoi

20-01-2016

Plug y=2x+1 into x+2y=17, we have:
x+ 2(2x+1)= 17
⇒ x+ 2*2x+ 2*1= 17 (distributive property)
⇒ x+ 4x+ 2= 17
⇒ 5x= 17-2
⇒ 5x= 15
⇒ x= 15/5
⇒ x= 3

y= 2x+1= 2*3+1= 7

Final answer: x= 3, y= 7~

Answer Link

Otras preguntas

Roses sell for $3 each and carnations for$1.50 each. If a mixed bouquet of 20 flowers consisting of roses and carnations cost $39 how many of each type of flowe

(10ac-x)/11=-3 solve for a

A shopper in a supermarket pushes a loaded cart with a horizontal force of 13.3 Newtons. The cart has a mass of 25.1 kg and is pushed for 3.60 seconds, starting

Draw counters in the ten-frame to show each number

What are some of physicals properties that describe terriers

Why did Mesopotamian irrigation systems allow civilization to develop? Why or why not?

A department store advertised that for every $25 you spend at the store, you get $2 off your total bill. Nate's bill came to $154 before the discount. He figu

22 is 44% of what number

A rectangle made of square tiles measured 7 tiles long and 3 tiles wide. What is the length of a similar rectangle whose width is 9 tiles?

I am thinking of a number such that 6 less than the product of 7 and this number is 85 which number is she thinking of