Answers

  • Brainly User
2016-06-22T10:02:23+08:00
1)  x + 7 = 12
x + 7 -7 = 12 - 7
x = 5

2)  t - 4 = 10
t - 4 + 4 = 10 + 4
t = 14

3) Use Addition Property, similar to Item 1) and 2).  

4)  Use Addition Property, similar to Item 1) and 2).  

You'll learn if you try answering 3 and 4.

5)  2x = 16
2x/2 = 16/2
x = 8          

6)  -5x = 35
-5x/-5 = 35/-5
x = -7

7)  -7x = -28
-7x/-7 = -28/-7
x = 4

8)  3(x + 7) = 24
3x + 21 = 24
3x + 21 - 21 = 24 - 21
3x = 3
3x/3 = 3/3
x = 1
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