1.

(2x + y = 8(y+3x=13​

Answer»

hey BUDDY,

here is your detailed answer..

2x + y = 8 \\y = 8 - 2x \\ put \: y \: in \: another \: equation \\ y + 3x = 3 \\ (8 - 2x)+ 3x = 3 \\   - 2x + 3x = 3 - 8 \\ x =  - 5 \\ put \: x \: in \: y \:  = 8 - 2x \\ y = 8 - 2( - 5) \\ y = 8 + 10 \\ y = 18

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