332,510 views
43 votes
43 votes
What is x 1/4(8x+12)=21

User Karpathy
by
2.8k points

2 Answers

7 votes
7 votes

Answer:

x=9

Explanation:

  • Try first by multiplying the 8x and 12 in the brackets by 1/4 so it will be:

2x+3=21

  • Now subtract 3 from each side

2x=18

  • Then divide each side by 2

x=9

User DataDino
by
2.3k points
19 votes
19 votes

Answer:

x = 9

Explanation:

1/4(8x+12) =21

1/4 * 8x = 2x

1/4 * 12 = 3

2x + 3 = 21

21 - 3 = 18

2x = 18

18/2 = 9

x = 9

User Vineet Menon
by
3.0k points
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