Question

COROANĂ!!!!!

Rezolvați ecuațiile in Z :
-4-{6-[-3+(-3)-(x+5)-7]-9}=1
-10{-2-2[(-4)⁵:4⁴-2]}=-2x

Answer 1

a) x=-20

b) x=50

Explicație pas cu pas:

a) -4-{6-[-3+(-3)-(x+5)-7]-9}=1

-4-[6-(-3-3-x-5-7)-9]=1

-4-[6-(-6-x-12)-9]=1

-4-[6-(-18-x)-9]=1

-4-(6+18+x-9)=1

-4-(24+x-9)=1

-4-(15+x)=1

-4-15-x=1

-19-x=1

-x=1+19

-x=20 |×(-1)

x=-20

b)-10{-2-2[(-4)⁵ ÷4⁴-2]}=-2x

-10{-2-2×[(-4)¹-2]}=-2x

-10[-2-2×(-4-2)=-2x

-10[-2-2×(-6)]=-2x

-10(-2+12)=-2x

-10×10=-2x

-100=-2x

-2x=-100 |÷(-2)

x=50