Question

Me ajudem♡☆¿

1_ Arme e resolva as equações:
a)3x-2(4x-3)=2-3(x-1)
b)3(x-1)-(x-3)+5(x-2)=18
c)5(x-3)-4(x+2)=2+3(1-2x)
d)7(x-5)=3(x+1)
e)3(x-2)=4(-x+3)

Answer 1

a)3x-2(4x-3)=2-3(x-1)
   3x-8x+6 = 2-3x+3
   3x-8x+3x=2+3-6
   -8x = -1
      x = -1/18
      x = 1/18

b)3(x-1)-(x-3)+5(x-2)=18
   3x-3-x+3+5x-10=18
   3x-x+5x=18+3-3+10
   7x = 28
     x = 28/7
     x = 4

c)5(x-3)-4(x+2)=2+3(1-2x)
   5x-15-4x-8=3+3-6x
   5x-4x+6x=3+3+15+8
   7x = 29
     x = 29/7

d)7(x-5)=3(x+1)
   7x-35=3x+3
   7x-3x=3+35
   4x = 38
     x = 38/4
     x = 19/2

e)3(x-2)=4(-x+3)
   3x-6=-4x+12
   3x+4x=12+6
   7x = 18
     x = 18/7