demi143
demi143
13-09-2017
Mathematics
contestada
7. solve. 3x + 3 = 21 (1 point)
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Аноним
Аноним
13-09-2017
The answer is 6. Subtract three from both sides, then divide by three and x=6
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millernjm99
millernjm99
13-09-2017
3x+3=21
-3 -3
3x=18
Divide both sides by 3
X=6
Answer Link
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