Marissababy
Marissababy Marissababy
  • 03-05-2017
  • Mathematics
contestada

8x-9y=19 4x+y=-7 How Do I Do This Type Of Math

Respuesta :

mreijepatmat
mreijepatmat mreijepatmat
  • 03-05-2017
8x-9y=19
4x+y=-7
 Multiply all terms of the 2nd by (9)===>  36x + 9y= 63

add (36x  9y=  63) to the 1st ===> 44x+0y = -44 ===> x=-1
replace x by this value in any of the equation & you'll get y=-3
Answer Link

Otras preguntas

There are 80 sixth graders at Wilson Middle School. Only 60% of the sixth graders will attend the morning assembly. How many sixth graders will be at the mornin
Modern : antiquated :: weak :
Mason is a purely ________ artist
Where are volcanoes and earthquakes likely to occur? a. where the earth’s core is cooledB. where plates collide or pull apartC. where plates do not moveD. wher
Write the explicit formula that represents the geometric sequence-2, 8, -32, 128
Please help me asap!
Which one of these foods must be cooked to at least 165°f?
It is important to avoid isostatic stretches because they can
Based on your research what are the characteristics of the Fungi Kingdom?
harun and kuna competed in a 200m race. harun ran at a speed of 5m/s. kuna ran at a speed of 8m/s. if they started at the same time,a) find the time kuna took t