vizhnay9615 vizhnay9615
  • 01-12-2020
  • Mathematics
contestada

Solve the system by elimination. . 4x-9y=-21 , -4x-3y=9

Respuesta :

Emersoncushing
Emersoncushing Emersoncushing
  • 01-12-2020
(-3, 1)
4x-9y=-21
+-4x-3y=9
-12y= -12
y=1

4x- 9(1)= -21
4x-9=-21
+9 +9
4x= -12
x=-3
Answer Link

Otras preguntas

Which function is the inverse of f(x)=50,000(0.8)^x? a. f^-1(x)=log0.8(x/20,000) b. f^-1(x)=log50,000(x/0.8) c. f^-1(x)=log0.8(50,000/x) d. f^-1(x)=log0.8(x
an arrangement of elements into rows and columns according to similarities in their properties
A trailer is rented at $30 per day plus a charge per mile of use. The trailer traveled 25 miles in one day, and the total charge was $130. Which equation can be
A line has a rise of 4 and a run of 6, what is the slope?
Owens bedroom has a perimeter of 46 feet. If the length of the bedroom is 11 feet, what is the width of the bedroom?
what was the name Given to the banning of alcoholic beverages
El horno en al cocina
Find the value of the given trigonometric function. cos 1140 degrees
estimate 23 to the nearest interger
Which word set completes the following analogy? desert : flood :: __________:_________ jungle : drought dry : air lost : location identify : recognize