responda as equações:
a)8b-3=5b+6
b)+9=10-y
c)5+4a=a-3
d)5.(2x-1)=3.(x-4)
e)4x-12=2.(x+7)+6
Soluções para a tarefa
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A)8b-3=5b+6
8b-5b=6+3
3b=9
b=9/3
b=3
B)9=10-y
9+y=10
y=10-9
y=1
C)5+4a=a-3
4a-a=-3-5
3a=-8
a=-8/3
D)5.(2x-1)=3.(x-4)
10x-5=3x-12
10x-3x=-12+5
7x=-7
x=-7/7
x=-1
E)4x-12=2.(x+7)+6
4x-12=2x+14+6
4x-2x=20+12
2x=32
x=32/2
x=16
8b-5b=6+3
3b=9
b=9/3
b=3
B)9=10-y
9+y=10
y=10-9
y=1
C)5+4a=a-3
4a-a=-3-5
3a=-8
a=-8/3
D)5.(2x-1)=3.(x-4)
10x-5=3x-12
10x-3x=-12+5
7x=-7
x=-7/7
x=-1
E)4x-12=2.(x+7)+6
4x-12=2x+14+6
4x-2x=20+12
2x=32
x=32/2
x=16
GeekT:
2y+9=10-y|||2y+y=10-9|||3y=1||y=1/3
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