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
6x+Y=-39 3x+2y=-15
elimination
2 answers
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
6x+y=-39
3x+2y=-15
12x+2y = -78
3x+2y = -15
9x = -63
x = -7
so, y = 3