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

Can someone show me the graph and domain and range for this piece wise function?

active transport performs which function in a cell, packages protein for export from the cell? Packages proteins for export from the cell, distributes enzymes

Suppose that a dominant allele (P) codes for a polka-dot tail and a recessive allele (p) codes for a solid colored tail. If two heterozygous individuals with po

What was the main belief of Plato?

Can someone show me the graph and domain and range for this piece wise function?

Who appoints the chief justice of the supreme court?

Which will most likely result if there is increased upwelling in a coastal area? A. more aquatic life B. less nutrients in the water C. higher water temperature

All of the following are examples of solutions except saltwater bronze air water

A large body of air hats has similar properties of a temperature and moisture is a

aimee's karate class last 1 hour and 15 minutes and is over at 5:00 pm. what time does Aimee's karate class start?