lukerothbacher lukerothbacher

02-02-2019
Mathematics

contestada

3x + 4y = 5
X- 3y = -7

Solve by substitution

Respuesta :

meredith48034 meredith48034

02-02-2019

x = 3y - 7
3x + 4y = 5

3(3y - 7) + 4y = 5
9y - 21 + 4y = 5

13y - 21 = 5

13y = 26

y = 2

x - 3(2)= -7

x - 6 = -7

x = -1

(-1, 2)

Answer Link

Otras preguntas

what is x for number 14.

Which word in the sentence, if any, should be followed by a colon? Countries in Africa include Liberia, Nigeria, Zimbabwe, Chad, and Ethiopia. A. There is no er

What made the Mexican victory so remarkable and suprising? A. The French were larger and better equipped. B. The Mexican army had no weapons. C. The French paid

Find the circumference and area of a circle with a diameter of 22 inches. Leave your answers in terms of pi.

A drama in which the characters and setting are presented in typical and real-world ways is known as A drama in which the characters and setting are presented i

as agriculture became entrenched in the south

Which one of the following is not true of the Dred Scott decision? Slaves are not free because they are property of their master. Property cannot be denied an

Constantine moved the seat of the Roman government to what is now... A. Milan b. greece c. turkey d. sicily

when the united states joined the allies, why did the allies concentrate first on defeating hitler?

How do governments correct for the unfairness of negative externalities? They create public goods. They pay the sufferers from tax money. They regulate firms an