Equações de 1º grau

 1 – Resolva as equações de 1º grau.

a) 5 x + 6 = – 4

b) 3 x + 26 = – 1

c) 4 x – 8 – 2 x = x – 2

d) 10 x – 8 – 2 = 7 x – 4

e) 2 x + 5 – 5 x = – 1

f) 4 x – 4 – 5 x = – 6 + 90

g) – 3 x + 10 = 2 x + 8 + 1

h) 3 x – 4 = 11

i) 4 x + 6 = 12 – 2 x

j) x – 10 – 8 = 2 x + 4

k) 5 x + 4 x – 10 = 2 x – 2

l) 10 – 9 x + 2 x = 2 – 3 x

m) x + 2 x – 1 – 3 = x

n) – 10 + 4 – 2 x = – 4 x – 7

o) 2 – 4 x = 32 – 18 x + 12

p) 2 x + 3 = 9

q) 3 x + 7 = x + 3

r) – 7 x + 4 + 10 x = 4 – 2 x

s) 5 + 6 x = 5 x + 2

t) 2 – 3 x = – 2 x + 12 – 3 x

u) 7 x – 4 – x = – 2 x + 8 – 3 x

v) 2 ( x + 1 ) – ( x – 1 ) = 0

w) 13 + 4 ( 2 x – 1 ) = 5 ( x + 2 )

 2 – Resolva as equações do 1º grau.

a) 4 ( x + 5 ) + 3 ( x + 5 ) = 21

b) 8 ( x – 1 ) = 8 – 4 ( 2 x – 3 )

c) 2 ( x + 5 ) – 3 ( 5 – x ) = 10

d) 4 x – 1 = 3 ( x – 1 )

e) 3 ( x – 2 ) = 2 x – 4

f) 7 ( x – 4 ) = 2 x – 3

g) 2 ( x – 1 ) = 3 x + 4

h) 3 ( x – 2 ) = 4 ( 3 – x )

i) x – 7/4 = – 5x/2

j) – x/3 – 3/4 = 1/6 + 3x/2

k) 4m/5 – 3m/10 = 5m/2 – 6

l) 2/3 – 7y/6 = y/3 – 1/2

m) – 11z/20 – 1/2 = 3/4 – z/5