Question

Ecuaciones...

a) 3x - 7 = 3x - 35 + 2x
b) 5x - 11 - 10x = -x + 5
c) -12 + 5x = 3x + 6 + 4x
d) -6x - 9 + 5x = 5x - 2x + 11

e) 5(x + 6) - 6x = 10
f) 4(x - 2) = 3(x - 1)
g) 2(2 - x) + 6 = 3(x - 2) + 16

h) 7x - 5 = 4x + 4
i) 7x + 2+ 2x = 5x + 6 + 2x
j) (x + 12) + 1 = (x - 5) + (x - 3)

Answer 1

Bueno

Te ayudo con las 4 primeras para que te guies


a) 3x - 7 = 3x - 35 + 2x
3x - 7 = 5x - 35
3x - 5x = -35 - 7
3x -5x = -42
-2x = -42
x = -42/-2
x = 21

b) 5x - 11 - 10x = -x + 5
-5x - 11 = -x +5
-5x + x = 5 + 11
-4x = 16
x = 16/-4
x = -4

c) -12 + 5x = 3x + 6 + 4x
-12 + 5x = 7x + 6
5x - 7x = 6 + 12
-2x = 18
x = 18/-2
x = -9

d) -6x - 9 + 5x = 5x - 2x + 11
-x - 9 = 3x + 11
-x - 3x = 11 + 9
-4x = 20
x = 20/-4
x = -5

Espero ayude

Answer 2

e) 5(x + 6) - 6x = 10

5(x + 6) - 6x = 10
5x+30-6x=10
5x-6x=10-30
-x= -20
x=20
............................................................................
f) 4(x - 2) = 3(x - 1)

4(x-2)=3(x-1)
4x-8=3x-3
4x-3x= -3+8
x=5
........................................................
g) 2(2 - x) + 6 = 3(x - 2) + 16

2(2 - x) + 6 = 3(x - 2) + 16
4-2x+6=3x-6+16
-2x+4+6=3x+10
-2x+10=3x+10
-2x-3x=10-10
-5x=0
x=0
...........................................................
h) 7x - 5 = 4x + 4

7x-5=4x+4
7x-4x=4+5
3x=9
x=9/3
x=3
....................................................................
i) 7x + 2+ 2x = 5x + 6 + 2x

7x + 2+ 2x = 5x + 6 + 2x
7x+2x+2=5x+2x+6
9x+2=7x+6
9x-7x=6-2
2x=4
x=4/2
x=2
.........................................................
j) (x + 12) + 1 = (x - 5) + (x - 3)

(x + 12) + 1 = (x - 5) + (x - 3)
x+12+1=x-5+x-3
x+13=x+x-5-2
x+13=2x-8
x-2x= -8-13
-x= -21
x=21