A) (-4)+x-(-8)+4=7
– 4 + x + 8 + 4 = 7
x = 7 – 4 – 8 + 4
x = -1
б) x-(-5)+4,7=-11
x + 5 + 4.7 = – 11
x = – 11 – 4,7 – 5
x = -20.7
A) (-4)+x-(-8)+4=7
– 4 + x + 8 + 4 = 7
x = 7 – 4 – 8 + 4
x = -1
б) x-(-5)+4,7=-11
x + 5 + 4.7 = – 11
x = – 11 – 4,7 – 5
x = -20.7