A) 8 – 2x = - 20 ; b) 8x + 2,4 = 3,6; c) 6,4 – 2x = 8 – 2x

Question

A) 8 – 2x = - 20 ;
b) 8x + 2,4 = 3,6;
c) 6,4 – 2x = 8 – 2x

Answer 1

А) 8 – 2x = - 20 ;
-2х=-20-8;
-2х=-28;
х=14.
б) 8x + 2,4 = 3,6;
8х=3.6-2.4;
8х=1.2;
х=0.15