Question

Alguém pode ajudar com a resolução das equações
a)X/3+2=6
b)x/6-5=-1
c)5x=2x-9
d)2 (x-1)+3 (x+1)=21
e)X/3+X/2=10
f)X+1/2-x/3=3
g)x+6/2-×-2/3=3

Answer 1

a) x/3+2=6
x/3=6-2
x=4*3=12

b)x/6-5=-1
x/6=-1+5
x=4/6=2/3

c)5x=2x-9
5x-2x=-9
3x=-9
x=-9/3=-3

d)2*(x-1)+3*(x+1)=21
2x-2+3x+3=21
5x+1=21
5x=21-1
x=20/5=4

e)x/3+x/2=10
2x/6 + 3x/6= 60/6
2x+3x=60
5x=60
x=60/5=12

f)x+1/2 -x/3=3
2x+1/2 -x/3=3
6x+3/6 -2x/6=18/6
6x-2x=18-3
4x=15
x=15/4

g)x+6/2 -x -2/3=3
2x+6 -3x-2=18
-x=18-4=14
x=14


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