Question

A)- (x-3):3+20=4alcuadrado+8


b)- 5x-100=69-8x

c)- 3.(x+5)-2x+1=48:3

d)- (x-2).4+36=42.2+x+4

Answer 1

a) (x-3):3 + 20 =4** + 8
(x-3):3 + 20 =16 +8
(x-3):3 =4
(x-3)=12
x=15



b) 5x-100=69-8x
     5x+8x=69+100
      13x=169
          x=13

c) 3x +15 - 2x + 1=16
x + 16 =16
x=0

d)  (x-2).4+36=42.2+x+4
4x-8 + 36 = 84 +x+4
4x + 28 = 88 +x
3x= 88-28
3x= 60
x=20