Explicación paso a paso:
Rectas paralelas cortadas por una secante
a)
8x +30 = 2x + 96
8x - 2x = 96 - 30
6x = 66
x = 66/6
x = 11
b)
7x + 45 = 2x + 115
7x - 2x = 115 -45
5x = 70
x = 70/5
x = 14
c)
3x + 63 = 6x + 12
63- 12 = 6x - 3x
51 = 3x
51/3 = x
17 = x
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Explicación paso a paso:
Rectas paralelas cortadas por una secante
a)
8x +30 = 2x + 96
8x - 2x = 96 - 30
6x = 66
x = 66/6
x = 11
b)
7x + 45 = 2x + 115
7x - 2x = 115 -45
5x = 70
x = 70/5
x = 14
c)
3x + 63 = 6x + 12
63- 12 = 6x - 3x
51 = 3x
51/3 = x
17 = x