Question

1) Reduza os termos semelhantes a um único termo:

a) 6x+3x
b) 5a-8a
c) 3x-4x-2x
d) 4x+x
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2) resolva as equações do 1° grau sendo U=Q
a) -6x=36
b) 7x=-42
c) 3y=-21
d) -3x=0
e)9x=63
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3) Resolva as equações do 1°grau sendo U=Q
a) x+5=9
b) x+12=5
c) y+5=5
d) x-6=9
e) m+9=3
f) x+1=-11
g) x-5=-10
h) z+-1=-12

Answer 1

a)9x
b)-3a
c)-3x
d)5x
(2)
a)x=36/6
x=2
b)x=-42/7
x=-6
c)y=-21/3
y=-7
d)x=0/-3
x=0/-3não existe
e)x=63/9
x=7
(3)
a)x=9-5
x=4
b)x=5-12
x=-7
c)y=5-5
y=0
d)x=9+6
x=15
e)m=3-9
m=-6
f)x=-11-1
x=-12
g)x=5-10
x=-5
h)z=-1-12
z=-13