Question

Sabendo que U = Q, resolva as equações.​

Answer 1

Resposta:

a)2(×+3)=30

2×+6=30

2×=30-6

2×=24

×=24/2

×=12

b)8-2(×+5)=5

8-2×-10=5

-2×=5+10-8

-2×=7

×=7/-2

×=-7/2

c)3(y-1)-4(y-2)=6

3y-3-4y+8=6

3y-4y=6+3-8

-y=1

y=-1

d)2(5y+1)=27

10y+2=27

10y=27-2

10y=25

y=25/10

y=5/2

e)2y-3(y-1)=8-2(y-2)

2y-3y+3=8-2y+4

2y-3y+2y=8-3+4

y=9

f)6×-5(1-×)=10×+6

6×-5+5×=10×+6

6×-10×+5×=6+5

×=11

g)3(2×+4)=4(×+6)

6×+4=4×+24

6×-4×=24-4

2×=20

×=20/2

×=10

espero que tenha ajudado