sulrawbat50 sulrawbat50

26-04-2020
Mathematics

contestada

4x+2y=20 and 3x-y=10

Which coordinate solves both equations.

Respuesta :

26-04-2020

4x + 2y = 20

3x - y = 10

Multiplying second equation by 2.

6x - 2y = 20

Adding to the first,

10x = 40

x = 4

y = 3x - 10 = 3(4) - 10 = 2

Answer: (4, 2)

Check:

4(4) + 2(2) = 16+4 = 20, good

3(4) - 2 = 12 - 2 = 10, good

Answer Link

Otras preguntas

How do you find 99% if a number

what is an attraction of the mall called Comercial Galerias in San Salvador? a. childrens swing sets b. water slides c. a mansion d. free parking

How was Charlemagne able to expand his empire?

how can 5 people share a 3 segment

what is 70 %off $70?

What is 5/8 + 3/4 because I am doing fractions right know

Solve the following inequality: 38 < 4x + 3 + 7 – 3x. could someone show me this step by step? i have an idea but cant quite do it

If a power was not specified under the Articles of Confederation, who would be responsible for it?

Who came to settle the land after the explorers in the Midwestern states? trappers voyagers homesteaders frontiersmen

What was name of the Middle Colonies because these colonies were large producers of grain?