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irga5000 [103]
3 years ago
6

Solve by substitution 3x +y=13 and 5x-2y=7​

Mathematics
1 answer:
Verdich [7]3 years ago
3 0

Answer:

x=3

y=4

Step-by-step explanation:

I'm using 3x+y=13 to find y, then plug y into the second equation.

y= -3x+13

5x-2(-3x+13)=7

find x.

5x+6x-26=7

11x=33

x=3

now plug x into 3x+y=13(you could do it with the other equation too)

3(3)+y=13

y=13-9

y=4

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