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IdunnolearningBest ResponseYou've already chosen the best response.1
add together like terms
 one year ago

febylailaniBest ResponseYou've already chosen the best response.0
just put x + 2x on the left side and put the other to the right side
 one year ago

IdunnolearningBest ResponseYou've already chosen the best response.1
than subtract 30 from both sides
 one year ago

IdunnolearningBest ResponseYou've already chosen the best response.1
than divide by 3
 one year ago

febylailaniBest ResponseYou've already chosen the best response.0
(x + 20) + (2x + 10) = 90 x + 2x = 90  20  10 3x = 9030 3x = 60 x = 20
 one year ago
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