Resolva as equações abaixo:
a)-x-5= 13
b) 20 - x= 15
c).2-x= 34
d) - x + 10 =-42
e)-x-8=30
f)-6-x = -12
g) -5x = -40
h) -10x=-50
a)-x-5= 13
b) 20 - x= 15
c).2-x= 34
d) - x + 10 =-42
e)-x-8=30
f)-6-x = -12
g) -5x = -40
h) -10x=-50
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Resposta:
a)-18
b)5
c)-32
d)52
e)-38
f)6
g)8
h)5
Explicação passo-a-passo:
a) -x-5=13
-x=13+5
-x=18
x= -18
b)20-x=15
-x= 15 - 20
-x= -5
x=5
c) 2-x=34
-x = 34 -2
-x= 32
x= -32
d)-x+10=-42
-x = -42 -10
-x= -52
x=52
e) -x-8=30
-x=30+8
-x=38
x=-38
f)-6-x=-12
-x=-12+6
-x=-6
x=6
g)-5x=-40
x=-40/-5
x=8
h)-10x=-50
x=-50/-10
x=5