Posted by BaileyBubble on Friday, December 14, 2012 at 7:40pm.
D=C
2x+5=x+12
2x-x+12-5
x=7
A=B
y-4=x+5
y-4=(7)+5
y-4=12
y=12+4
y=16
A=y-4==>16-4=12
B=x+5==>7+5=12
C=x+12==>7+12=19
D=2x+5==>2(7)+5=19
{a=12, b=12, c=19, d=19}
thank you so much!!!!
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