An artist is asked to scale up a model of Pluto to 3 times its original size. If the original model of Pluto has a radius of 12
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if you isolate y in the top equation to get y=5x+6 then you can substiture y for 5x+6 in the bottom equation because thats what y equals
as of now you have -3x+6(5x+6)=-12 but if you use the distrubite property you would get -3x+30x+36=-12
then if you subtract 36 from both sides you would get -3x+30x=-48 then combine like terms to get 27x=-48 then divide both sides by 27 to get or x≈1.8
-3.3=
Multiply both sides of the equation by 6 to isolate x.
-19.8=x
Your answer is -19.8.
I hope this helps :)