А)28-4х=19-х б)-35-2х=42+9х

Question

А)28-4х=19-х
б)-35-2х=42+9х

Answer 1

А) 28-4х=19-х
28-19=4х-х
9=3х
х=9/3=3

Б) -35-2х=42+9х
-35-42=9х+2х
-77=11х
х=-7