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3(x–2)|=12 what is x
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3 votes
3(x–2)|=12 what is x

User Quy Le
by
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1 Answer

4 votes

Multiply the bracket by 3

3(x-2)= 12

3(x)-3(2)=12

3x-6= 12

Move -6 to the other side. Sign changes from - 6 to +6 .

3x-6+6= 12+6

3x= 18

Divide by 3 for 3x and 18

3x/3= 18/3

x= 6

Check answer by using substitution method

3(x-2)= 12

3(6-2)= 12 ( Multiply the bracket by 3)

18-6= 12

12= 12

Answer : x= 6

User Tomasz Karbownicki
by
6.3k points
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