#1**+2 **

Multiply the bottom equation through by 3

This gives the system

6x + 5y = 2

-6x + 21y = 102 add these

26y = 104 divide both sides by 26

y = 4

And

6x + 5(4) = 2

6x + 20 = 2 subtract 20 from both sides

6x = -18 divide both sides by 6

x = -3

So { x, y} = { -3, 4 }

CPhill Apr 30, 2019

#2