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20). 5r=22 21). X/4= -9 22). 3x -5= 13 23). 1/4d + 2=3 24). -21-5x=64
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20). 5r=22

21). X/4= -9
22). 3x -5= 13
23). 1/4d + 2=3
24). -21-5x=64

User Benshabatnoam
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dividing by 5, R=22/5, now divide 22/5=4.4
User Marco Benvoglio
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