Tacydavid226 Tacydavid226

19-12-2019
Mathematics

contestada

If 2x+3y=27 and 3x-2y=8 and x-y=1. What is x+y

Respuesta :

Yang100 Yang100

19-12-2019

Answer:

11

Step-by-step explanation:

2x+3y=27

3x-2y=8

----------------

3(2x+3y)=3(27)

-2(3x-2y)=-2(8)

-----------------------

6x+9y=81

-6x+4y=-16

------------------

13y=65

y=65/13

y=5

2x+3(5)=27

2x+15=27

2x=27-15

2x=12

x=12/2

x=6

------------------

x+y=6+5=11

Answer Link

Otras preguntas

How would 10% be written as a fraction?

In analyzing the chart, what is the relationship between fees and dollar advanced? What do you think that payday lenders base their fees on?

Levi went apple picking at an orchard. He picked 15 green apples. He picked 5 times as many green apples as red apples. How many red apples did Levi pick?

I need the function for the volume of the box for number 1

Plz freaking help me, its really urgent!!!! How did the Chinese political system influence Kublai Khan’s government? Kublai Khan kept Chinese bureaucracy in pla

Solve each absolute value equation 1. [n - 3]= 5

Which fraction and decimals forms match the long division problem?

Please help me simplify this answer.

What does the word teleport mean. A.Travel at the speed of light and soundB.Move from one place to another

What is the value of x