Answer:
(x,y)=(-10, -30)
Step-by-step explanation:
x/4 -y/12 = 0
--> x/4 = y/12
substitute into the first eq.
x/4 + y/12 = -5
y/12 + y/12 = -5
2y/12 = -5
y= (-5) * 12/2 = -30
solve for x, x/4 = (-30)/12
x=4* (-30)/12 = -10
I’m not sure what the choices are so I don’t know what the correct answer is but expressions that could be equivalent are
r+r+t+r
3r+t
Answer:
-8
Step-by-step explanation:
Answer:
1/6
Step-by-step explanation:
27 x 3 = 81
81/486 = 1/6 (486/81 = 6)
(-2x)(x^2)+(-2x)(-3) = -2x^3 + 6x