Question

a) 2x+5x-12=10x-4x
b) 2x-(-10+1)=24-5x
c) -4x-(-12+2-4)=9+x
porfaaaa ayuda

Answer 1

a) 2x+5x-10x+4x=12
7x-6x=12
x=12

b) 2x+10-1+5x=24
7x=24-9
x=15/7

c) -4x+12-2+4=9+x
14-9=5x
x=5/5
x=1

Answer 2

2x+5x-12=10x-4x
7x -12 = 6x
7x-6x = 12
x = 12


2x-(-10+1)=24-5x
2x+10-1 = 24-5x
2x+9 = 24-5x
2x+5x = 24-9
7x = 15
x =15/7

 -4x-(-12+2-4)=9+x
-4x-(-14)= 9+x
-4x +14 = 9+x 
14-9 = 4x+x
5 = 5x

5/5 = x

1 = x