-40 = - 10 x
3x = -45 - 2x
6[x + 3] -2 [ x - 5 ]= 20
x = -40/-10 = 4
5x = -45
x = -9
6x + 18 - 2x + 10 = 20
4x = -8
x = -2
pronto
a
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x = -40/-10 = 4
5x = -45
x = -9
6x + 18 - 2x + 10 = 20
4x = -8
x = -2
pronto
a