Question

1)4(2-3m)-(6-m) -2(3m+4,если m=-0,3

Answer 1

4(2-3m)-(6-m)-2(3m+4)=
=8-12m-6+m-6m-8=
= -6-17m
Если m=-0,3, то -6-17m=-6-17*(-0,3)=
=-6+5,1=-0,9

Answer 2

Вот решение на фото....

Answer 3

To solve this expression, you need to substitute the value of $m$ into the expression and then simplify it step by step. Let's substitute $m = -0.3$ into the given expression:

$4(2 - 3m) - (6 - m) - 2(3m + 4)$

Replace $m$ with $-0.3$:

$4(2 - 3(-0.3)) - (6 - (-0.3)) - 2(3(-0.3) + 4)$

Now, simplify the expression inside the parentheses and brackets:

$4(2 + 0.9) - (6 + 0.3) - 2(-0.9 + 4)$

$4(2.9) - 6.3 - 2(3.1)$

Now, perform the multiplications:

$11.6 - 6.3 - 6.2$

Finally, subtract the numbers:

$11.6 - 6.3 - 6.2 = -0.9$

So, the value of the expression $4(2 - 3m) - (6 - m) - 2(3m + 4)$ when $m = -0.3$ is $-0.9$.