Question

1-Resolva cada uma das equaçoes seguintes:
a)3×=33
b)2+2×-8
c)2×-3=33-×
d)2a-3=a+5
e)5×-3+2×-4=0
f)3b+1=-b+3
g)-c+1=2c-3

Answer 1

a)3×=33

x = 33/3

x = 11

b)2+2×=-8

2x = -8-2

2x = -10

x = -10/2

x = -5

c)2×-3=33-×

2x+x = 33+3

4x = 36

x = 36/4

x = 9

d)2a-3=a+5

2a-a = 5+3

a = 8

e)5×-3+2×-4=0

7x = +4+3

7x = 7

x = 7/7

x = 2

f)3b+1=-b+3

3b+b = 3-1

4b = 2

b = 4/2

b = 2

g)-c+1=2c-3

-c-2c = -3-1

-3c = -4

c = 4/3

❤️ Bom final de semana ❤️

13/11/21