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

6) Find the surface area of the square pyramid.8 cm5 cm

The existing balance in Allowance for Doubtful Accounts is considered in computing bad debts expense in the A. direct write-off method. B. percentage of receiva

HELP ASAP!! Which angle is congruent to angle D? A) A B) B C) C D) all of the above

Who breaks a tie vote in the Senate?the Vice Presidentthe Presidentthe majority whipthe majority leader

Robbin earned $80 over the weekend and Beth made $70. Which statement shows who made more money over the weekend?

The answer to the question

Large electric fields in cell membranes cause ions to move through the cell wall. The field strength in a typical membrane is 1.0 x 10 7 N/C. What is the magnit

The Treaty of Torcdesilias established a territorial dividing line between

Round your answers to one decimal place, if necessary. Find the mean and median of these data: 2, 7, 12, 14, 19, 21.

The life of the typical college student is characterized by time spent in many different areas. How can this thesis statement be improved? A. Typical coll