demi143 demi143

13-09-2017
Mathematics

contestada

7. solve. 3x + 3 = 21 (1 point)

Respuesta :

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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