Sagot :
Bonjour,
Simplifier :
A (-15)+(-8)+(+9)+(+13)+(-11)
A = - 15 - 8 + 9 + 13 - 11
A = - 15 - 8 - 11 + 9 + 13
A = - 34 + 22
A = - 12
B (-12-)-(-3)+(-9)-(+8)+(+4)
B = - 12 + 3 - 9 - 8 + 4
B = - 12 - 8 - 9 + 3 + 4
B = - 29 + 7
B = - 22.
bonjour
A = - 15 - 8 + 9 + 13 - 11
= 22 - 34
= - 12
B = - 12 + 3 - 9 - 8 + 4
= 7 - 29
= - 22