Step-by-step explanation:
Rhombus since the other 3 have lines that go accross the graph horizontally for 3 squares.
The opposite of each customer's balance is obtained by changing its sign.
They are given below:
Girardi 85.23
Lewis - 20.44
Stien : 116.33
Yuan : - 13.50
Wenner : 9.85
x= 9
y= 9
4x -2y= 18.................equation 1
-4x + 2y= -18...............equation 2
From equation 1
4x= 18 + 2y
x= 18 + 2y/4
substitute 18+2y/4 for x in equation 2
-4(18+2y/4) -2y= 18
-(18+2y)-2y= 18
-18-2y-2y= 18
-18+4y= 18
4y= 18+18
4y= 36
y= 36/4
y= 9
Substitute 9 for y in equation 1
4x-2y= 18
4x-2(9)= 18
4x-18= 18
4x= 18+18
4x= 36
x= 36/4
x= 9
Hence the value of x is 9 and the value of y is 9
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Answer:
E) 
Step-by-step explanation:
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