Question

Ecuaciones

a)10x-50=100
b)90+54=12x
c)3x-25=50-4x
d)5x=25+75

Answer 1

Espero te sirva la explicación

Answer 2

a) 10x -50 = 100
    10x = 100 + 50
   10x  = 150
x = 150/10
x =15
b) 90+54 =12x 
    144 = 12x   invirtiendo la poseción
12x = 144
x = 144/12
x = 12
c) 3x-25 = 50-4x
3x+4x = 50+25
9x = 75
x = 75/9
x = 25/3
d) 5x = 25 +75
5x = 100
x =100/5
x = 20