Question

A) 7^x=49^x ajutor va rog
B) 2^x+1=2^3
C) 5^2x=25
D) 2(x+1)=12
E) 4x-3=21
F) (2x-1):5=9
G)2x-7=8-x

Answer 1

Răspuns:

a.7

b.2

c.5

d.5

e.6

f.2

g.5