Question

Resolva as seguintes equações:
a) 5x−7 2 = 1 2 + x
b) 2x−1 3 = x − x−1 5
c) x 4 + 3x−2 2 = x−3 2
d) x−1 2 + x−3 3 = 6

ME AJUDEM PVF

Answer 1

Resposta:

A) 5X-72=12+X

5X-X=12+72

4X=84

X=84÷4

X= 21

b)2x-13=x-x-15

2x+x-x=-15+13

2x=-2

x=2÷-2

x=-1

c) 4x+3x-22=x-32

4x+3x-x=-32+22

6x= -10

x= -10÷6

x= -1,6...

d) x-12+x-33=6

x+x=6+33+12

2x=51

x= 51÷2

x= 25,5