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sp11
 2 years ago
Best ResponseYou've already chosen the best response.1first do distributive property. 3 times x=3x. 3times 7= 21. Now your equation is 3x21=18. Then add 21 on both sides. and go on.

BillyBobJoe
 2 years ago
Best ResponseYou've already chosen the best response.0First you have to distribute the 3: 3x  21 = 18 Then you Isolate X by adding 21 to both sides: 3x 21 = 18 +21 +21 3x = 3 Then you divide both sides by 3 to get your answer: x= 3
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