2.(06.01) 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
12x - y = -4
4x - 3y = -6 (1 point)

Answer choices
4x - 3(-12x - 4) = -6

4x - 3(12x + 4) = -6

4(12x + 4) - 3y = -6

4(-12x - 4) - 3y = -6

9514 1404 393

  4x - 3(12x + 4) = -6

Step-by-step explanation:

Solving the first equation for y, you have ...

  12x +4 = y . . . . add y+4 to both sides

Replacing y with (12x+4) in the second equation gives ...

  4x -3(12x +4) = -6 . . . . matches the second choice

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.