Respuesta:
a.
7(x - 5) - x = 3
7x - 35 - x = 3
6x - 35 = 3
6x = 38
x = 19/3
b.
-3(2x - 5) - 5x = 3x
-6x + 15 - 5x = 3x
-11x + 15 = 3x
14x = 15
x = 15/14
c.
7(x - 2) - 6x + 1 = 3 - 4x
7x - 14 - 6x + 1 = 3 - 4x
x - 13 = 3 - 4x
5x = 16
x = 16/5
d.
4x + 2(2x - 5) = (x - 3) - (8 - x)
4x + 4x - 10 = x - 3 - 8 + x
8x - 10 = 2x - 11
6x = -1
x = -1/6
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Respuesta:
a.
7(x - 5) - x = 3
7x - 35 - x = 3
6x - 35 = 3
6x = 38
x = 19/3
b.
-3(2x - 5) - 5x = 3x
-6x + 15 - 5x = 3x
-11x + 15 = 3x
14x = 15
x = 15/14
c.
7(x - 2) - 6x + 1 = 3 - 4x
7x - 14 - 6x + 1 = 3 - 4x
x - 13 = 3 - 4x
5x = 16
x = 16/5
d.
4x + 2(2x - 5) = (x - 3) - (8 - x)
4x + 4x - 10 = x - 3 - 8 + x
8x - 10 = 2x - 11
6x = -1
x = -1/6