Question 74381
2x+4y=40
7x-3y=4

3(2x+4y=40)
6x+12y=120

4(7x-3y=4)
28x-12y= 16

6x+12y=120
+28x-12y= 16
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34x = 136
x = 4

2(4) + 4y = 40
8 + 4y = 40
4y = 32
y = 8