Question

1º Determine "X":
i)16x-1=12x+3
j)3x-2=4x+9
k)5x-3+x=2x+9
l)17x-7x=x+18
m)x+x-4=17-2x+1
n)x+2x+3-5x=4x-9
o)5x+6x-16=3x+2x-4
p)5x+4=3x-2x+4

Answer 1

i)16x-1=12x+3==> 16X -12X = 3+1 ==> 4X = 4 ==> X = 1 

j)3x-2=4x+9==> 3x -4x = 9+2==>-x=11(-1)==> x = - 11

k)5x-3+x=2x+9==> 5x-2x+x=9+3==> 4x=12==>x= 3

l)17x-7x=x+18==> 17x-7x-x=18==> 9x=18==>x = 2

m)x+x-4=17-2x+1==>x+x+2x=17+1+4==>4x=22==>x=22/4

n)x+2x+3-5x=4x-9==>x+2x-5x-4x=- 9-3==>-7x=-12(-1)=>7x=12==>x=12/7

o)5x+6x-16=3x+2x-4==>5x+6x-3x-2x= -4+16==>6x=12==>x = 2

p)5x+4=3x-2x+4==>5x-3x+2x=4-4==>4x=0==>x=0