Answer:m=142
Step-by-step explanation:180-38
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Answer: -30/13
I hope this helped!
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3x-15=x+3/3
9x-45=x+3
9x-x=3+45
8x=48
x=6
∠ABC=3×6-15=3°
∠DEF=6+3/3=3°
Hope my answer helped u :)
Subtract 1 from both sides and it will become >> 11-1/5r=2r
Add 1/5r to both sides >> 11=11/5r
Divide both sides by 11/5 >> 2=r
r=5