a) (x-12)*8 = 168x - 96 = 168x = 116x = 116 / 8x = 14.5
б) 24*(z+9) = 22824z + 216 = 22824z = 12z = 12 / 24z = 0.5
в) (y+25) / 8 = 16y+25 = 8*16y+25 = 128y = 128 - 25y = 103
г) 124 / (y-5) = 31124 = 31(y-5)124 = 31y - 15531y = 279y = 279 / 31y = 9
д) 38x + 15 = 9138x = 91 - 1538x = 76x = 76 / 38x = 2
е) 44 / (z+9) = 2044 = 20(z+9)44 = 20z + 18020z = -136z = -136 / 20z = -6.8
a) (x-12)*8 = 16
8x - 96 = 16
8x = 116
x = 116 / 8
x = 14.5
б) 24*(z+9) = 228
24z + 216 = 228
24z = 12
z = 12 / 24
z = 0.5
в) (y+25) / 8 = 16
y+25 = 8*16
y+25 = 128
y = 128 - 25
y = 103
г) 124 / (y-5) = 31
124 = 31(y-5)
124 = 31y - 155
31y = 279
y = 279 / 31
y = 9
д) 38x + 15 = 91
38x = 91 - 15
38x = 76
x = 76 / 38
x = 2
е) 44 / (z+9) = 20
44 = 20(z+9)
44 = 20z + 180
20z = -136
z = -136 / 20
z = -6.8