4(2m+5n)-3(n-7n)=

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Solution for 4(2m+5n)-3(n-7n)= equation:


Simplifying
4(2m + 5n) + -3(n + -7n) = 0
(2m * 4 + 5n * 4) + -3(n + -7n) = 0
(8m + 20n) + -3(n + -7n) = 0

Combine like terms: n + -7n = -6n
8m + 20n + -3(-6n) = 0

Remove parenthesis around (-6n)
8m + 20n + -3 * -6n = 0

Multiply -3 * -6
8m + 20n + 18n = 0

Combine like terms: 20n + 18n = 38n
8m + 38n = 0

Solving
8m + 38n = 0

Solving for variable 'm'.

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

Add '-38n' to each side of the equation.
8m + 38n + -38n = 0 + -38n

Combine like terms: 38n + -38n = 0
8m + 0 = 0 + -38n
8m = 0 + -38n
Remove the zero:
8m = -38n

Divide each side by '8'.
m = -4.75n

Simplifying
m = -4.75n

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