Question

7x+5-5x-7=2la puterea 0 +2 la puterea 1 +2 la puterea 2 +1 va rog frumos!!

Answer 1

$7x+5-5x-7= 2^{0} + ({2^{2+1})^2 +1$

orice numar la puterea 0 este egal cu 1!

7x+5-5x-7=1 + (2³)² +1

2x-2=1+2⁶ +1

2x-2=1+64 +1

2x=2+1+64 +1

2x=68

x= 34