Question

a)3(x-7)-7=15
b)7(x-4)=2x-3
c)3 (3x-1) = 4(3-X)
d)33X-1) = 2(3x + 2)
e) 7 (x-2) = 5 (x+3)
f)3 (2x-1)=-2 (x+3)
g)-3 (x+2) = 15
h)422x+3x+9=866-X
i)4(x+10)-2 (x-5)=0
j)13(2x+3) -4(x-1)= 3
k)f(x-1)-266-5)=x-5
m)2(3-X) =3(x-4) + 15
n)3 (5-X)-3(1-2x) = 42
o)(4x+6)-2x=(x-6) + 10 +14
p) (x-3)-(x+2)+2(x-1)-5=0​

Answer 1

Resposta:

d) 3(x -1) - 7 = 15

3x - 3 - 7 = 15

3x - 10 = 15

3x = 15 + 10

3x = 25

x = 25/3

e) 7(x - 4) = 2x - 3

7x - 28 = 2x - 3

7x - 2x = -3 + 28

5x = 25

x = 25/5

x = 5

Espero ter ajudado.