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kogti [31]
3 years ago
9

Solve the system algebraically x+3y=11 4x-4y=7

Mathematics
2 answers:
ololo11 [35]3 years ago
6 0

Answer:

x = 65/16,   y = 37/16

Step-by-step explanation:

solve the system algebraically

x+3y=11

4x-4y=7

Try substitution.

let  x =  11 - 3y

Plug in.

4(11 - 3y) - 4y = 7

44 - 12y - 4y = 7

44 - 16y = 7

37 = 16y

y = 37/16

x = 11 - 3*y

x = 11 - 3*(37/16)

x = 11 -  111/16

x = 65/16

Natalija [7]3 years ago
3 0
It may be 7/3 or 2.33 I’m sorry if I got it wrong
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