6x+Y=-39 3x+2y=-15

elimination

2 answers

method:

Multiply the first equation by 2:
12x + 2y = -78

Add the two equations together:
15x = -93

Divide both sides by 15:
x = -6.2

Substitute -6.2 for x in the first equation:
6(-6.2) + y = -39

Simplify:
-37.2 + y = -39

Subtract -37.2 from both sides:
y = 1.8
AAAaannndd the bot gets it wrong yet again!

6x+y=-39
3x+2y=-15

12x+2y = -78
3x+2y = -15

9x = -63
x = -7
so, y = 3