7x^2+(m+n-5x)+(m-n+7)=0

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Solution for 7x^2+(m+n-5x)+(m-n+7)=0 equation:


Simplifying
7x2 + (m + n + -5x) + (m + -1n + 7) = 0

Remove parenthesis around (m + n + -5x)
7x2 + m + n + -5x + (m + -1n + 7) = 0

Reorder the terms:
7x2 + m + n + -5x + (7 + m + -1n) = 0

Remove parenthesis around (7 + m + -1n)
7x2 + m + n + -5x + 7 + m + -1n = 0

Reorder the terms:
7 + m + m + n + -1n + -5x + 7x2 = 0

Combine like terms: m + m = 2m
7 + 2m + n + -1n + -5x + 7x2 = 0

Combine like terms: n + -1n = 0
7 + 2m + 0 + -5x + 7x2 = 0
7 + 2m + -5x + 7x2 = 0

Solving
7 + 2m + -5x + 7x2 = 0

Solving for variable 'm'.

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

Add '-7' to each side of the equation.
7 + 2m + -5x + -7 + 7x2 = 0 + -7

Reorder the terms:
7 + -7 + 2m + -5x + 7x2 = 0 + -7

Combine like terms: 7 + -7 = 0
0 + 2m + -5x + 7x2 = 0 + -7
2m + -5x + 7x2 = 0 + -7

Combine like terms: 0 + -7 = -7
2m + -5x + 7x2 = -7

Add '5x' to each side of the equation.
2m + -5x + 5x + 7x2 = -7 + 5x

Combine like terms: -5x + 5x = 0
2m + 0 + 7x2 = -7 + 5x
2m + 7x2 = -7 + 5x

Add '-7x2' to each side of the equation.
2m + 7x2 + -7x2 = -7 + 5x + -7x2

Combine like terms: 7x2 + -7x2 = 0
2m + 0 = -7 + 5x + -7x2
2m = -7 + 5x + -7x2

Divide each side by '2'.
m = -3.5 + 2.5x + -3.5x2

Simplifying
m = -3.5 + 2.5x + -3.5x2

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