208k views
8 votes
Please help 8, 9, and 10 you don't need to explain

Please help 8, 9, and 10 you don't need to explain-example-1
User Schytheron
by
6.5k points

2 Answers

11 votes

Explanation:

8.

1/2(x + 24) = 21

1/2x +12 = 21

1/2x = 9

x = 18

9.

28 - 3x - 4 = 2x + 12 + x

24 - 3x = 3x + 12

24 - 6x = 12

-6x = -12

x = 2

10.

3x - 18 + 6 = 5x - 6

3x - 12 = 5x - 6

-2x - 12 = -6

-2x = 6

x = -3

hope it help.

can you answer my question, i can help you in math, can you help me in english? please

User Zlog
by
6.5k points
10 votes

Answer:

8.

x

12

9

4.5

9.

3, 4, 12

3, 3, 12

6, 12

-6, -12

2

10.

plug in x to check work

User Rakefet
by
6.7k points
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