Question

2х+5=16,4 помогите Реал надо

Answer 1

2х=16, 4-5
2х=11, 4
х=11, 4:2
х=5, 7

Answer 2

2X=16,4-5
2x=11,4
X=5,7

Answer 3

(1/4)^(2x-5) = 16;
(1/4)^(2x - 5) = (1/4)^(-2);
2x - 5 = -2;
2x = - 2 +5;
2x = 3;
x = 1,5.