t1ddiabeticboo t1ddiabeticboo

16-12-2019
Mathematics

contestada

twice a number plus three times another number equals 4. three times the first number plus four times the other number is 7. what are the numbers?

Respuesta :

Yang100 Yang100

18-12-2019

Answer:

x=5, y=-2. (5, -2).

Step-by-step explanation:

2x+3y=4

3x+4y=7

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

3(2x+3y)=3(4)

-2(3x+4y)=-2(7)

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

6x+9y=12

-6x-8y=-14

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

y=-2

2x+3(-2)=4

2x-6=4

2x=4+6

2x=10

x=10/2

x=5

Answer Link

Otras preguntas

5. EXPLANATORY WRITING In this lesson, you have learned about various religions and philosophies that emerged in ancient cultures, including Judaism, Hinduism,

Which best explains how a heat pump can heat a room? 1Cold air from the house is moved through pipes, where it absorbs thermal energy. 2Warm air from outside i

what effects did the government response to the great depression have on the credit industry?

Please answer fast The figure to the right has it congruent segments marked.Find the measure of ab

Read the excerpt from Greta Thunberg’s speech at the United Nations Climate Action Summit. So a 50% risk is simply not acceptable to us—we who have to live with

What comparison does Roosevelt make as he concludes his speech? What is his point in doing so?

Consider the title “The New Colossus.” Consult a dictionary and other reference materials to explain the connection and importance of the title to the poem.

Guys where did i go wrong

what was the federalists view on power of the thirteen states

Which of the following options would be the most effective hook?