Question

ayudaaa con esto es de matematicas

Answer 1

Respuesta:

Ecuaciones de primer grado, pertenecen a una recta.

a)

$x + 4 = 49 \\ x = 49 - 4 \\ x = 45$

$x + 1 = 3 \\ x = 3 - 1 \\ x = 2$

$x + 2 = 6 \\ x = 6 - 2 \\ x = 4$

$x + 3 = 9 \\ x = 9 - 3 \\ x = 6$

$2x + 9 = 13 \\ 2x = 13 - 9 \\ 2x = 4 \\ x = \frac{4}{2} \\ x = 2$

b)

$x + 2 = 7 \\ x = 7 - 2 \\ x = 5$

$2x = 12 \\ = \frac{12}{2} \\ x = 6$

c)

$2x = 8 \\ x = \frac{8}{2} \\ x = 4$

$3x = - 12 \\ x = \frac{ - 12}{3} \\ x = - 4$

$x + 8 = 64 \\ x = 64 - 8 \\ x = 56$

$x + 3 = 7 \\ x = 7 - 3 \\ x = 4$

$3x + 9 = 30 \\ x + 3 = 10 \\ x = 10 - 3 \\ x = 7$

$x + 3 = 8 \\ x = 8 - 3 \\ x = 5$

$x + 2 = 26 \\ x = 26 - 2 \\ x = 24$

$x - 4 = 3 \\ x = 3 + 4 \\ x = 7$

$\frac{x}{3} = 5 \\ x = 5(3) \\ x = 15$

$\frac{x}{2} = - 5 \\ x = - 5(2) \\ x = - 10$

$\frac{x}{5} = 4 \\ x = 5(4) \\ x = 20$