If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalent to y from the first equation i
Mathematics
Kollene530
Question
If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalent to y from the first equation is substituted into the second equation. 15x − y = −6 5x − 3y = −13 5(−15x − 6) − 3y = −13 5(15x + 6) − 3y = −13 5x − 3(15x + 6) = −13 5x − 3(−15x − 6) = −13
2 Answer

1. User Answers texaschic101
15x  y =  6.....15x + 6 = y...so we sub in 15x + 6 in for y on the other equation
5x  3y = 13
5x  3(15x + 6) = 13 <== the new equation 
2. User Answers virtuematane
Answer:
Hence, the resultant equation will be:
5x −3(15x + 6) = −13
Stepbystep explanation:
We are given a system of linear equations such that the first equation is given by:
15x − y = −6(1)
and the second equation is given by:
5x − 3y = −13(2)
If you were to use the substitution method to solve the following system the new equation after the expression equivalent to y from the first equation is substituted into the second equation will be given by:
consider equation (1)
15x − y = −6(1)
find the expression in terms of x.
i.e. 15x+6=y(A)
substitute this equation into equation (2) to obtain:
5x − 3(15x + 6) = −13