Question

Mega urge!!
ECUACIONES.

c) x + 5x - 4 = 18 - 2x

d) 3x -2 + 7x = 7 - 1

e) 4( 2x + 3) - 2x = 4x + 20

f) 34 = 3x -6 + 2x

Answer 1

x+5x-4=18-2x
6x-4=18-2x
6x+2x=18+4
8x=22
x= 22 
     8
x= 11 
     4
...................................................
3x-2+7x=7-1
3x+7x-2=6
10x-2=6
10x=6+2
10x=8
x= 8 
    10
x= 4 
     5
............................................................
4(2x+3)-2x=4x+20
8x+12-2x=4x+20
8x-2x+12=4x+20
6x+12=4x+20
6x-4x=20-12
2x=8
x= 8 
     2
x=4
................................................................
34=3x-6+2x
34+6=3x+2x
40=5x
40/5=x
8=x

Answer 2

c)
x +5x -4 = 18 -2x
x +5x +2x = 18 +4
8x = 22
x = 22/8
x = 11/4

d)
3x -2 + 7x = 7 - 1
3x +7x = 7 -1 +2
10x = 8
x = 8/10
x = 4/5

 e)
 4( 2x + 3) - 2x = 4x + 20
8x +12 -2x = 4x +20
8x -2x -4x = 20 -12
2x = 8
x = 8/2
x = 4

f)
 34 = 3x -6 + 2x
34 +6 = 3x +2x
40 = 5x
40/5 = x
8 = x
x = 8