44
-t - 4 = 8 + 7t
- t - 7t = 8 + 4
- 8t = 12
t = -12/8 = -3/2
13x + 11 = 8x + 28
13x - 8x = 28 - 11
5x = 17
x = 17/5
ex 45
5x = 0
x = 0
7y + 22 = 14 - 4y
7y + 4y = 14 - 22
11 y = -8
y = -8/11
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44
-t - 4 = 8 + 7t
- t - 7t = 8 + 4
- 8t = 12
t = -12/8 = -3/2
13x + 11 = 8x + 28
13x - 8x = 28 - 11
5x = 17
x = 17/5
ex 45
5x = 0
x = 0
7y + 22 = 14 - 4y
7y + 4y = 14 - 22
11 y = -8
y = -8/11