Question

D) x + 2x + 3x = 18 ​

Answer 1

x+2x+3x=18

RESULTADO

3x+3x−{18}=0

6x−18=0

(6)⋅x+(−18)=0

x=−(−18)6

x=−(6)⋅(−3)(6)=3

Answer 2

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