Question

Resuelve las sig ecuaciones de primer grado: -10x-154=42-24x
38x+90=25x-14

Answer 1

-10x-154=42-24x
-10x+24x=42+154
14x=196
x=196/14
x=14


38x+90=25x-14
38x-25x=-14-90
13x=-104
x=-104/13
x=-8

Answer 2

$- 10x - 154 = 42 - 24x \\ - 10x + 24x = 42 + 154 \\ - 14x = 196 \\ x = 196 \div 14 \\ x = 14$
$38x + 90 = 25x - 14 \\ 38x - 25x = - 14 - 90 \\ 13x = - 104 \\ x = - 104 \div 13 \\ x = - 8$