Substituting the equation x = 2y + 3 into the equation y=-3x - 4 will produce the equation y = -3(2y + 3) - 4
Linear equations are equations that have constant average rates of change, slope or gradient
A system of linear equations is a collection of at least two linear equations.
In this case, the system of equations is given as
x = 2y + 3
y = -3x - 4
Considering the first equation
x = 2y + 3
Considering the second equation
y = -3x - 4
Substitute the first equation in the second equation
y = -3(2y + 3) - 4
Hence, substituting the equation x = 2y + 3 into the equation y=-3x - 4 will produce the equation y = -3(2y + 3) - 4
Read more about system of linear equations at
https://brainly.com/question/14323743
#SPJ1