7 (4n-5m-2)

a (b+c+1)

Answer:m = - 0.4 + 0.8n

Step-by-step explanation:Simplifying

7 (4n + - 5m + - 2) = 0

Reorder the terms:

7 (-2 + - 5m + 4n) = 0

(-2 * 7 + - 5m * 7 + 4n * 7) = 0

(-14 + - 35m + 28n) = 0

Solving

-14 + - 35m + 28n = 0

Solving for variable 'm'.

Move all terms containing m to the left, all other terms to the right.

Add '14' to each side of the equation.

-14 + - 35m + 14 + 28n = 0 + 14

Reorder the terms:

-14 + 14 + - 35m + 28n = 0 + 14

Combine like terms: - 14 + 14 = 0

0 + - 35m + 28n = 0 + 14

-35m + 28n = 0 + 14

Combine like terms: 0 + 14 = 14

-35m + 28n = 14

Add '-28n' to each side of the equation.

-35m + 28n + - 28n = 14 + - 28n

Combine like terms: 28n + - 28n = 0

-35m + 0 = 14 + - 28n

-35m = 14 + - 28n

Divide each side by '-35'.

m = - 0.4 + 0.8n

Simplifying

m = - 0.4 + 0.8n