Question

Solve the following system of equations. 2a – 3b + c = 10 2a – 2b – 2c = 2 a + 3b + 2c = –1

Answer 1

are these 3 different equations?

Answer 2

yes

Answer 3

Solve the first one for c, and use it to eliminate c in the two other equations. Now, solve one of the resulting two equations for b, and use it to eliminate b in the last equation, which you can then solve for a.