Question

$a)x + ( + 9) = 13 \\ b)x + ( - 6) = - 10 \\ c)x + ( - 7) = 0 \\ d)x+ ( - 3) = + 3 \\ e)x + ( - 9) = - 15 \\ f)( + 8) + x = + 11 \\ g)x + ( + 7) = - 3 \\ h)( - 20) + x = - 18 \\ i)( + 6) + x = 0 \\ j)( - 1) + x = - 10$
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Answer 1

Explicação passo-a-passo:

a)X+(+9)=13

X=13-9

X=4

b)x+(-6)=-10

x=-10+6

x=-4

c)x+(-7)=0

x=7

d)x+(-3)=3

x=3+3

x=6

e)x+(-9)=-15

x=-15+9

x=-6

f)(+8)+x=+11

x=11-8

x=3

g)x+(+7)=-3

x=-10

h)(-20)+x=-18

x=-18+20

x=2

i)(+6)+x=0

x=-6

j)(-1)+x=-10

x=-10+1

x=-9