Question

2x+5=9
3x+7=2x-4
5x-9=3x+6
2x-5=3x+4
5x-1=7x-4

Answer 1

Respuesta:

1. x = 2.
2. x = -11.
3. x = $\frac{15}{2}$.
4. x = -9.
5. x = $\frac{3}{2}$.

Answer 2

Explicación paso a paso:

2x + 5 = 9

2x = 9 -5

2x = 4

x = 4/2

x = 2

3x + 7 = 2x -4

3x - 2x = -4 -7

x = -11

5x - 9 = 3x + 6

5x - 3x = 6 + 9

2x = 15

x = 15/2

2x -5 = 3x +4

2x -3x = 4 +5

-x = 9

x = -9

5x -1 = 7x -4

5x - 7x = -4 +1

-2x = -3

x = -3/-2

x = 3/2