Answer:x = -1 and y = -1Step-by-step explanation:Solve 3x+3y=β6;βx+y=0
Steps:
I will solve your system by substitution.
βx+y=0;3x+3y=β6
Step: Solveβx+y=0for y:
βx+y+x=0+x(Add x to both sides)
y=x
Step: Substitutexforyin3x+3y=β6:
3x+3y=β6
3x+3x=β6
6x=β6(Simplify both sides of the equation)
6x
6
=
β6
6
(Divide both sides by 6)
x=β1
Step: Substituteβ1forxiny=x:
y=x
y=β1
Answer:
x=β1 and y=β1