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1.Sa se rezolve:

f)x+ (-5)=4
g)x+(-7)=-2
h)x+(-2)=-4
i)-4+x=3
j)-10+x=2
k)-12+x=-4
l)x-(-2)=3
m)x-(-6)=-3
n)x-(-8)=-10
o)x-(-5)=2
p)x-(-4)=-3

E URGEEENNNTTTT,VA ROGG!!!!


Răspuns :

f)x+ (-5)=4 <=> x = 5+4 => x = 9

g)x+(-7)=-2 <=> x = 7-2 => x = 5

h)x+(-2)=-4 <=> x = 2-4 => x = -2

i)-4+x=3 <=> x = 4+3 => x = 7

j)-10+x=2 <=> x = 10+2 => x = 12

k)-12+x=-4 <=> x = 12-4 => x = 8

l)x-(-2)=3 <=> x = 3-2 => x = 1

m)x-(-6)=-3 <=> x = -3-6 => x = -9

n)x-(-8)=-10 <=> x = -8-10 => x = -18

o)x-(-5)=2 <=> x = -5+2 => x = -3

p)x-(-4)=-3 <=> x = -4-3 => x = -7