Question

Calcula el valor de la variable en cada ejercicio:

10m - 12 = 5


2x + 8 = 9 - 5 x


12b - 10 = 6 - 3b

Answer 1

Explicación paso a paso:

$10m - 12 = 5 \\ 10m = 5 + 12 \\ 10m = 17 \\ m = \frac{17}{10}$

$2x + 8 = 9 - 5x \\ 2x + 5x = 9 - 8 \\ 7x = 1 \\ x = \frac{1}{7}$

$12b - 10 = 6 - 3b \\ 12b + 3b = 6 + 10 \\ 15b = 16 \\ b = \frac{16}{15}$