Question

como resolver 10-1x=3x

Answer 1

10 - 1x = 3x

10 = 3x + 1x

10 = 4x

4x = 10

x = 10/4

x = 2,5

Answer 2

$1x + 3x = 10 \\ 4x = 10 \\ x = \frac{10}{4} \\ x = 2.5$