Question

If you were able 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

Answer 1

Explanation:

15x-y=-6 ....... y=15x+6

now sub 15x+6 in for y into the other equation

5x-3y=-13

5x-3(15x+6)=-13 this is the new equation