Question

MATH HELP !!!!!!! :)

Answer 1

1) 

2a - 3bc = -9
2a = -9 + 3bc
a = -9/2 + 3bc/2

2)

Reciprocal of -2/3 is -3/2

3)

reciprocal of -1 is -1/1 or -1

Hope this helps :)