mae9110 mae9110

01-03-2021
Mathematics

contestada

3x+y=-9
Y=5x+7
Solve the system of linear equations by substitution

Respuesta :

hookkick6969 hookkick6969

02-03-2021

Answer:

x=-2

Step-by-step explanation:

Substitute y=5x+7 into the equation 3x+y=-9

So you will have, 3x+5x+7=-9

3x+5x=8x

8x+7=-9

8x+7-7=-9-7

8x=-16

x=-2

Answer Link

Otras preguntas

which capital letter appears to have parallel lines

The total distance to be covered was 52 miles. If he cycled at a constant rate of 13 miles per hour, how much time did Ricky take to complete the race?

What are some questions I should ask when judging the quality of a primary source

according to the world on turtle's back how did the Iroquois view women

The Victorian Era was known for its focus on growth and development through industrialization. True False

Which event most likely influenced the creation of the science fiction genre? A) the Industrial Revolution B) World War I C) the Civil War D) the Gold Rush

Who won the Battle of Tippecanoe

Italian states like Venice and Florence were officially republics. In what sense were they republics in name only?

These electromagnetic waves are the most energetic: a. X rays b. microwaves c. radio waves d. gamma rays

what is the zeros of y=x(x+5)(x-8)