7x^2+3x-13=43-38x

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Solution for 7x^2+3x-13=43-38x equation:


Simplifying
7x2 + 3x + -13 = 43 + -38x

Reorder the terms:
-13 + 3x + 7x2 = 43 + -38x

Solving
-13 + 3x + 7x2 = 43 + -38x

Solving for variable 'x'.

Reorder the terms:
-13 + -43 + 3x + 38x + 7x2 = 43 + -38x + -43 + 38x

Combine like terms: -13 + -43 = -56
-56 + 3x + 38x + 7x2 = 43 + -38x + -43 + 38x

Combine like terms: 3x + 38x = 41x
-56 + 41x + 7x2 = 43 + -38x + -43 + 38x

Reorder the terms:
-56 + 41x + 7x2 = 43 + -43 + -38x + 38x

Combine like terms: 43 + -43 = 0
-56 + 41x + 7x2 = 0 + -38x + 38x
-56 + 41x + 7x2 = -38x + 38x

Combine like terms: -38x + 38x = 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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