Question

1) resolva as equações


a) x + 3 = 0
b)23x + 2 = 2
c)12 - 7 + 4x = 25
d)5x - 3x = 30
e)4x + 10 = 45 - 3x

Answer 1

Resposta:

a)x=-3

b)x=0/23=0

c)x=5

d)x=15

e)x=5

Explicação passo a passo:

a)x+3=0

x=-3

b)23x+2=2

23x=0

x=0/23=0

c)12-7+4x=25

5+4x=25

4x=20

x=20/4=5

d)5x-3x=30

2x=30

x=30/2=15

e)4x+10=45-3x

4x+3x=45-10

7x=35

x=35/7=5