Question

resolver as equações:
a= 3×-6=-9
b=5×-2=2×+4
c=7. (×+2)=2. (×-1)
d=4×-6=2
e=10×-2=-5×+13
f=7. (×+2)=2. (×-1)​

Answer 1

Resposta:

Explicação passo-a-passo:

Answer 2

Resposta:

A) x=-1

B) x=2

C) x=-16/5=3,2

D) x=2

E) x=1

F) x=-16/5=3,2

Explicação passo-a-passo:

a) 3x-6=-9

3x=-9+6

3x=-3

-3/3=-1

b) 5x-2=2x+4

5x-2x=4+2

3x=6

6/3=2

c)7.(x+2)=2.(x-1)

7x+14=2x-2

7x-2x=-2-14

5x=-16

-16/5

d)4x-6=2

4x=2+6

4x=8

8/4=2

e) 10x-2=-5x+13

10x+5x=13+2

15x=15

15/15=1

f)7.(x+2)=2.(x-1)

7x+14=2x-2

7x-2x=-2-14

5x=-16

-16/5