Question

i)3(2x-1)=-2(x+3)
j)5x-3(x+2)=15
k)5X-3+X=2X+9
L;17X-7=X+18
M;X+X-4=17-2X+1
N;X+2X+3-5X=4X-9
P;5X+6X-16=3X+2X-4
O;5X+4=3X-2X+4
R;4X-1=3(X-1)
S;3(X-2)=2X-4
T)2(X-1)=3X+4
U)3(X-1)-7=15
V)7(X-4)=2X-3
W)3(x-2)=4(3-X)
X)3(3X-1)=2(3X+2)
y)7(X-2)=5(X+3)

Answer 1

i) 3( 2x - 1 ) = - 2( x + 3 )
6x - 3 = - 2x - 6
6x + 2x = - 6 + 3
4x = - 3
x = - 3/4
j) 5x - 3( x + 2 ) = 15
5x - 3x - 6 = 15
2x = 15 + 6
2x = 21
x = 21/2
k) 5x - 3 + x = 2x + 9
5x + x - 2x = 9 + 3
4x = 12
x = 12/4
x = 3

l) 17x - 7 = x + 18
17x - x = 18 + 7
16x = 25
x = 25/16
m) x + x - 4 = 17 - 2x + 1
2x + 2x = 17 + 1 + 4
4x = 22
x = 22/4 sinplificando por 2
x = 11/2
n) x + 2x + 3 - 5x =4x - 9
3x - 5x - 4x + 9 - 3
- 2x - 4x = 6
- 6x = 6 ( - 1 )
6x = - 6
x = 6 /- 6
x = - 1

p) 5x + 6x - 16 = 3x + 2x - 4
11x - 3x - 2x = - 4 + 16
11x - 5x = 12
6x = 12
x = 12/6
x = 2

o) 5x + 4 = 3x - 2x + 4
5x - 3x + 2x = 4 - 4
2x + 2x = 0
4x = 0
x =0/4
x = 0

r) 4x - 1 = 3 ( x - 1)
4x - 1 = 3x - 3
4x - 3x = - 3 + 1
x = - 2

s) 3 ( x - 2 ) = 2x - 4
3x - 6 = 2x - 4
3x - 2x = - 4 + 6
x = 2

t) 2 ( x - 1 ) = 3x + 4
2x - 2 = 3x + 4
2x - 3x = 4 + 2
- x = 6 ( - 1 )
x = - 6

u) 3 ( x - 1 ) - 7 = 15
3x- 3 - 7 = 15
3x - 10 = 15
3x = 15 + 10
3x = 25
x = 25/3

v) 7 ( x - 4 ) = 2x - 3
7x - 28 = 2x - 3
7x - 2x = - 3 + 28
5x = 25
x = 25/ 5
x = 5

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

x) 3 ( 3x - 1 ) = 2 ( 3x + 2 )
9x - 3 = 6x + 2
9x - 6x = 2 + 3
3x = 5
x = 5/3

y) 7 ( x - 2 ) = 5 ( x + 3 )
7x - 14 = 5x + 15
7x - 5x = 15+ 14
2x= 29
x = 29/2