Question

a) 10-x=3
b) 2x-5=15
c) -9+4x=x
d) 3x-10=50+x

Answer 1

a)
-x = 3-10 = -7
x = -7/-1 = 7

b)
2x = 15+5 = 20
x = 20/2 = 10

c)
4x-x = 9
3x = 9
x = 9/3 = 3

d)
3x-x = 50+10 = 60
2x = 60
x = 60/2 = 30

Espero haberte ayudado. ¡Saludos!