Resolva as equações abaixo:
a)4x-7=1
b)x+2=5
c)2y-4=2
d)2a+4=-6
e)-2+5y=13
f)x+1=3
g)2x-3=8
h)4-9x=2
i)3z-7=12
j)10-5x=3 x +1
k)2x+6=-3x+1
l)2y-5=1-4y
m)15y-2+3y=7
n)-2+3x+2=3
o)6y-1+2y=7y
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Soluções para a tarefa
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a) 4x-7=1
4x=1+7
x=8/4
x=2
b)x+2=5
x=5-2
x=3
c)2y-4=2
2y=4+2
y=6/2
y=3
d)2a+4=-6
2a=-6-4
2a=-10
a=-10/2
a=-5
e)-2+5y=13
5y=13+2
y=15/5
y=3
f)x+1=3
x=3-1
x=2
g)2x-3=8
2x=8+3
x=11/2
x=5,5
h) 4-9x=2
-9x=2-4
x=-2/-9
j)10-5x=3x+1
-5x-3x=-10+1
-8x=-9
x=-9/-8
k)2x+6=-3x+1
2x+3x=-6+1
5x=-5
x=-5/5
x=-1
l)2y-5=1-4y
2y+4y=5+1
6y=6
y=6/6
y=1
m)15y-2+3y=7
15y+3y=7+2
18y=9
y=18/9
y=2
n)-2+3x+2=3
3x=3+2-2
3x=3
x=3/3
x=1
o)6y-1+2y=7y
6y+2y-7y=1
1y=1
y=1/1
y=1
4x=1+7
x=8/4
x=2
b)x+2=5
x=5-2
x=3
c)2y-4=2
2y=4+2
y=6/2
y=3
d)2a+4=-6
2a=-6-4
2a=-10
a=-10/2
a=-5
e)-2+5y=13
5y=13+2
y=15/5
y=3
f)x+1=3
x=3-1
x=2
g)2x-3=8
2x=8+3
x=11/2
x=5,5
h) 4-9x=2
-9x=2-4
x=-2/-9
j)10-5x=3x+1
-5x-3x=-10+1
-8x=-9
x=-9/-8
k)2x+6=-3x+1
2x+3x=-6+1
5x=-5
x=-5/5
x=-1
l)2y-5=1-4y
2y+4y=5+1
6y=6
y=6/6
y=1
m)15y-2+3y=7
15y+3y=7+2
18y=9
y=18/9
y=2
n)-2+3x+2=3
3x=3+2-2
3x=3
x=3/3
x=1
o)6y-1+2y=7y
6y+2y-7y=1
1y=1
y=1/1
y=1
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