Question

Solve by the linear combination method (with or without multiplication).

8x + 2y = 4
–4x + 3y = –10
help??

Answer 1

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Answer 2

Have you used elmination before?

Answer 3

@Trevorhowell16

Answer 4

no im behin in school ialready got that tho

Answer 5

Ok so we need opposite signs so that the X's will cancel out :)
\[2(–4x + 3y = –10)\]
multiply all by -2 let me know what your new equation is :)

Answer 6

im done with it haha

Answer 7

oh xD sorry so you dont need help? :)

Answer 8

Elena bought 320 tropical fish for a museum display. She bought 7 times as many triggerfish as parrotfish. How many of each type of fish did she buy?

Which is a system of equations to model the problem if x represents the number of parrotfish Elena bought and y represents the number of triggerfish she bought?

(Points : 1)
x + 7y = 320
y = 7x

x + y = 7
y = 320x

x + y = 320
y = 7x

x – y = 320
y = 7x

Answer 9

>

Answer 10

assign a variable for triggerfish and for parrotfish

Answer 11

dont now how

Answer 12

no

Answer 13

a variable is any letter or symbol assigned for a particular object
so if you're the object, I can use T

Answer 14

if the object we are looking at is an apple, I can assign a variable a