Question

Resolva as seguintes equações, sendo U=Q:

a)2x+6=x

b)2x+1=15

c)5-x-20=5x-10-7x

d)x+6=2-3x

e)10x=40

f)3x=-45-2

g)6(x+3)-2(x-5)=20

h)-2x-18=15

i)2(x-1)-1=8

j)2(x-7)-4(5-x)=2

k)2(x+3)=30

l)8-2(x-5)=5

m)3(x-1)-4(x-2)=6​

Answer 1

Resposta:

a)x=-6

b)x=7

c)-5=6x-7x

x=5

d)4x=-4

x=-1

e)x=4

f)x=-47/3

g)6x+18-2x+10=20

x=-2

h)x=-33/2

i)x=11/2

j)x=-32/6

k)x=12

l)x=13/2

m)x=-6/5