Question

descubra a parcela desconhecida.

a ) (-12)+ ? = -12
b) (+ 19 ) + ? = + 12
c ) ? + (-10) = 0
d) (+24) + ? =0
e) ? + (-6) = - 4
f ) (-16) + ? = + 9

Answer 1

-12+x=-12
x=-12+12=0

+19+x=+12
X=12-19=-7

X+(-10)=0
X-10=0
X=0+10
x=10

24+x=0
X=0-24
X=-24

X+(-6)=-4
X-6=-4
X=-4+6
x=2

-16+x=9
x=9+16
x=25

Answer 2

(-0)
(-7)
(+10)
(-24)
(+2)
(+25)