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Respuestas
a) 3x = 18
x = 6
b) 5x = 40
x = 8
c) 8m = 32
m = 4
d) -7p = -35
p = -5
e) x + 10 = 10 - 10
x + 10 = 0
x = 0 - 10
x = -10
f) x/2 = 1/2
2x = 2
x = 1
g) x + 6 = 5
6 - 5 = ×
1 = x
h) 2x + 8 = x + 11
2x - x = 11 - 8
x = 3
i) 2 ( X + 5 ) + 3 ( X - 2 ) = 24
2x + 10 + 3x - 6 = 24
5x + 4 = 24
5x = 24 - 4
5x = 20
x = 4
j) 3 ( x - 7 ) - 2 ( x - 3 ) = -18
3x - 21 - 2x + 6 = -18
x - - 15 = -18
× = -18 + 15
x = 3
k) 2 ( x + 3 ) = 10
2x + 6 = 10
2x = 10 - 6
2x = 4
x = 2
L) 3 ( x - 2 ) = 2x
3x - 6 = 2x
3x - 2x = 6
x = 6
M) 4 ( x - 2 ) = 2 ( x + 2 )
4x - 8 = 2x + 4
4x - 2x = 4 + 8
2x = 12
x = 6
AQUI ESTA