Question

Resolver las siguientes ecuaciones de primer grado

a. 5x – 5 = -2x-26 =

b. -9x+8 = 5x – 6 =

c. x-9 = 2x – 10 =

d. -9x – 3 = -4x + 12 =

e. 6x + 1 = 8x – 5 =

f. 4x-17 =3x-24 =

Answer 1

Resolver.

5x - 5 = - 2x - 26
5x + 2x = - 26 + 5
7x = - 21
x = - 21/7
x = - 3


- 9x + 8 = 5x - 6
8 + 6 = 5x + 9x
14 = 14x
14/14 = x
1 = x
x = 1


x - 9 = 2x - 10
- 9 + 10 = 2x - x
1 = x
x = 1


- 9x - 3 = - 4x + 12
- 3 - 12 = - 4x + 9x
- 15 = 5x
- 15/5 = x
- 3 = x
x = - 3



6x + 1 = 8x - 5
1 + 5 = 8x - 6x
6 = 2x
6/2 = x
3 = x
x = 3


4x - 17 = 3x - 24
4x - 3x = - 24 + 17
x = - 7

Answer 2

5x – 5 = -2x-26 
5x+2x = 5-26
7x = -21
x = -21/7
x = -3


-9x+8 = 5x – 6 =
8+6 = 5x+9x
14 = 14x
14/14 = x
1 = x


x-9 = 2x – 10 =
10-9 = 2x - x
1 = x


-9x – 3 = -4x + 12 =
-12-3 = 9x - 4x
-15 = 5x
-15/5 = x
-5 = x


6x + 1 = 8x – 5 =
1+5 = 8x-6x
6 = 2x
6/2 = x
3 = x


4x-17 =3x-24
4x-3x = -24+17
x = -7