Mathematics
jd249907
2015-10-31 01:02:33
(x+21) + (2x+9)=90 I need help for my geometry game
ANSWERS
DeenaDunshie884
2015-10-31 04:55:12

im not sure but... (x+21) + (2x+9)=90 x+21+2x+9 = 90 3x+30 = 90 3x = 60 x = 20

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