what should you substitute for x in the second equation (bottom equation) in order to solve the system by the substitution method? write your answer as a polynomial in descending order of terms.
2x -1/3 y = -2 3x + y= -1 (slash is a fraction bar)

Question

what should you substitute for x in the second equation (bottom equation) in order to solve the system by the substitution method? write your answer as a polynomial in descending order of terms.
2x -1/3 y = -2 3x + y= -1 (slash is a fraction bar)

campbell_st · Answer

2x - 1/3 y = -2

make x the subject

2x = 1/3 y - 2

x = 1/2(1/3y - 2)

or x= 1/6 y - 1

when substituted into (2) you would have 

3(1/6 y - 1) +y = -1

or 

3/2y - 3 = -1

hope this helps... the numbers aren't very friendly