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

Help ????????????????????
What is the most crippling form of arthritis called?
Solve the equation, if possible. -3|6n - 2| + 5 = 8
hat is the 68th term of sequence -8.6,-7.2,-5.8,-4.4,
what percent of 30,000 equals 22,500
how high is the tree in cm
A diamond with a mass of 45 g hangs motionless from a chain. what is the upward force of the chain on the diamond?
what was the significance of the 1884 berlin conference?
Solve the inequalties, if possible, and graph. 2t + 10 > 2(4t + 4).
a person travels 84 miles in 4 hours. what is the rate at which the person travels in miles per hour?