Answer:
D, E
Explanation:
2x-5=15,x=10
2x=20, x=5
2(x-5)=15, x=25/2
2x-20=0, X=10
4x-10=30, X=10
15=5-2x, X= -5
2x =15+5
2x =20
Divide by 2
X=10
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