Question

1) 10m +12 n-6m - 20 n2) 6x= - 1,8 ​

Answer 1

Пошаговое объяснение:

1) 10m+12n-6m-20n=4m-6n

2) 6x=-1,8

x=-1,8:6

х=-0,3

Answer 2

It seems like you've provided two separate mathematical expressions. Let me solve each one for you:

1) $10m + 12n - 6m - 20n$

To simplify this expression, first, combine like terms (terms with the same variable, $m$ or $n$):

$= (10m - 6m) + (12n - 20n)$
$= 4m - 8n$

So, the simplified form of the expression $10m + 12n - 6m - 20n$ is $4m - 8n$.

2) $6x = -1.8$

To solve for $x$, divide both sides of the equation by 6:

$x = \frac{-1.8}{6}$
$x = -0.3$

Therefore, the solution to the equation $6x = -1.8$ is $x = -0.3$.