7x^2+2x-15=41-39x

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Solution for 7x^2+2x-15=41-39x equation:


Simplifying
7x2 + 2x + -15 = 41 + -39x

Reorder the terms:
-15 + 2x + 7x2 = 41 + -39x

Solving
-15 + 2x + 7x2 = 41 + -39x

Solving for variable 'x'.

Reorder the terms:
-15 + -41 + 2x + 39x + 7x2 = 41 + -39x + -41 + 39x

Combine like terms: -15 + -41 = -56
-56 + 2x + 39x + 7x2 = 41 + -39x + -41 + 39x

Combine like terms: 2x + 39x = 41x
-56 + 41x + 7x2 = 41 + -39x + -41 + 39x

Reorder the terms:
-56 + 41x + 7x2 = 41 + -41 + -39x + 39x

Combine like terms: 41 + -41 = 0
-56 + 41x + 7x2 = 0 + -39x + 39x
-56 + 41x + 7x2 = -39x + 39x

Combine like terms: -39x + 39x = 0
-56 + 41x + 7x2 = 0

Factor a trinomial.
(-7 + -1x)(8 + -7x) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(8 + -7x)' equal to zero and attempt to solve: Simplifying 8 + -7x = 0 Solving 8 + -7x = 0 Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -7x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -7x = 0 + -8 -7x = 0 + -8 Combine like terms: 0 + -8 = -8 -7x = -8 Divide each side by '-7'. x = 1.142857143 Simplifying x = 1.142857143

Solution

x = {-7, 1.142857143}

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