-7-42m=4m-21m^2

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Solution for -7-42m=4m-21m^2 equation:


Simplifying
-7 + -42m = 4m + -21m2

Solving
-7 + -42m = 4m + -21m2

Solving for variable 'm'.

Combine like terms: -42m + -4m = -46m
-7 + -46m + 21m2 = 4m + -21m2 + -4m + 21m2

Reorder the terms:
-7 + -46m + 21m2 = 4m + -4m + -21m2 + 21m2

Combine like terms: 4m + -4m = 0
-7 + -46m + 21m2 = 0 + -21m2 + 21m2
-7 + -46m + 21m2 = -21m2 + 21m2

Combine like terms: -21m2 + 21m2 = 0
-7 + -46m + 21m2 = 0

Factor a trinomial.
(-1 + -7m)(7 + -3m) = 0

Subproblem 1

Set the factor '(-1 + -7m)' equal to zero and attempt to solve: Simplifying -1 + -7m = 0 Solving -1 + -7m = 0 Move all terms containing m to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + -7m = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -7m = 0 + 1 -7m = 0 + 1 Combine like terms: 0 + 1 = 1 -7m = 1 Divide each side by '-7'. m = -0.1428571429 Simplifying m = -0.1428571429

Subproblem 2

Set the factor '(7 + -3m)' equal to zero and attempt to solve: Simplifying 7 + -3m = 0 Solving 7 + -3m = 0 Move all terms containing m to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -3m = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -3m = 0 + -7 -3m = 0 + -7 Combine like terms: 0 + -7 = -7 -3m = -7 Divide each side by '-3'. m = 2.333333333 Simplifying m = 2.333333333

Solution

m = {-0.1428571429, 2.333333333}

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