it's c
Solve y=−3x−2;4y=−12x−8Steps:I will solve your system by substitution.y=−3x−2;4y=−12x−8Step: Solvey=−3x−2for y:Step: Substitute−3x−2foryin4y=−12x−8:4y=−12x−84(−3x−2)=−12x−8−12x−8=−12x−8(Simplify both sides of the equation)−12x−8+12x=−12x−8+12x(Add 12x to both sides)−8=−8−8+8=−8+8(Add 8 to both sides)0=0