Question

Escriba y desarrolle 5 ejemplos de ecuaciones de primer grado​

Answer 1

1. 2x + 5 = 9

2x= 4

x= 2

2. 4x + 3 = 21 - 2x

4x + 2x = 21 - 3

6x =18

x=3

3. 5x - 16 = 7X - 4

2x = 12

x = 6

4. x + 2(3-x) = x

x+2 . 3 + 2.(-x) = x

x+6 -2x = x

x- 2x = x- 6

x - 2x - x = -6

-2x = -6

x=3

5. 4x - 2 - x = -6 + x

4x - x = -6 + x + 2

4x - x- x = -6 + 2

4x - 2x = -4

2x = -4

x = -2