princessbrianna113 princessbrianna113

03-12-2021
Mathematics

contestada

2x-3y=9. -5x-3y=30 elimination

Respuesta :

robertphilemon73 robertphilemon73

03-12-2021

7x=-21

x=(-21÷7)

x=-3

then

2x-3y=9

(2×-3)-3y=9

-6-3y=9

-3y=9+6

-3y=15

y=(15÷-3)

y=-5

Answer Link

Otras preguntas

Which of these is a simplified form of the equation 9y + 5 = 7 + 3y + 2y? A.9y=7 B.14y=12 C.5y=12 D.4y-2

What is the degree of this polynomial? threex exponent 2 mines four x plus nine

Stamp collecting is not considered a hobby. true false

In dust tracks on a road two white men visit hurston��s school. true false

A term used to encompass mental, emotional, social, and spiritual dimensions of health is a. psychoenvironmental. b. psychosocial. c. socio-holistic. d. soc

Which of these is a simplified form of the equation 9y + 5 = 7 + 3y + 2y? A.9y=7 B.14y=12 C.5y=12 D.4y-2

Statistics that are used to draw conclusions about larger groups are called __________. a. inferential b. descriptive c. analogical d. anecdotal

In circle A shown below, Segment BD is a diameter and the measure of Arc CB is 54°. Points B, C, D lie on Circle A; line segment BD is the diameter of circle A;

Zoe’s math teacher tells her to construct an equilateral triangle. What information does Zoe need?

List the causes of World War I and the war's effects on social, economic, and foreign policy in the United States?