x/4+9=5
x/8+5=20
x/3-5=-6
x/12+8=-4
2x/4+12=4
np.x/4 xkreska ułamkowa4
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a)
x/4+9=5 /*4
x + 36 = 20
x = 20 - 36
x = -16
b)
x/8+5=20 /*8
x + 40 = 160
x = 160 - 40
x = 120
c)
x/3-5=-6 /*3
x - 15 = -18
x = -18 + 15
x = -3
d)
x/12+8=-4 /*12
x + 96 = -48
x = -48 - 96
x = -144
e)
2x/4+12=4 /*4
2x + 48 = 16
2x = 16 - 48
2x = -32 /:2
x = -16