Răspuns:
Explicație pas cu pas:
(3¹¹)⁹+(3)⁹⁹+[(3³)³]¹¹*x= (3²)⁵⁰+(3⁴)²⁵+ (3⁵)²⁰
3⁹⁹+3⁹⁹+3⁹⁹ *x = 3¹⁰⁰+3¹⁰⁰+3¹⁰⁰
3⁹⁹*(1+1+1)*x=3¹⁰⁰*( 1+1+1)
3⁹⁹*3*x=3¹⁰⁰*3
3¹⁰⁰*x= 3¹⁰¹
x=3¹⁰¹:3¹⁰⁰
x= 3 ( c)
