Question

Equações Alguém pode me ajudar nessas Questões?
a) 2(×-1)=3×+4
b) 3(×-1)-7=15
c) 7×-28=2×-3
d) 3×-6=12-4×
e) 9×-3=6×+4
f) -×-5+4×=7×+6×+15
g) 3×-2-2×-3=0
h) 7x-4-×=-2×+8-3×​

Answer 1

Resposta:

A)2×-2=3×+4

2×-3×=4+2

-×=6(-1)

×=-6

B)3×-3-7=15

3×=15+7+3

3×=25

×=25/3

C)7×-2×=-3+28

5×=25

×=25/5

×=5

D)3×+4×=12+6

7×=18

×=18/7

E)9×-6×=4+3

3×=7

×=7/3

F)-×-7×-6×=15+5

-14×=20(-1)

14x=-20

×=-20/14

×=10/7

G)3×-2×=0+3+2

×=5

H)7×-×+2×+3×=8+4

6×+4×=12

10×=12

×=12/10

×=1,2