x^2+5x-7=7x+1

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Solution for x^2+5x-7=7x+1 equation:


Simplifying
x2 + 5x + -7 = 7x + 1

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

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

Solving
-7 + 5x + x2 = 1 + 7x

Solving for variable 'x'.

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

Combine like terms: -7 + -1 = -8
-8 + 5x + -7x + x2 = 1 + 7x + -1 + -7x

Combine like terms: 5x + -7x = -2x
-8 + -2x + x2 = 1 + 7x + -1 + -7x

Reorder the terms:
-8 + -2x + x2 = 1 + -1 + 7x + -7x

Combine like terms: 1 + -1 = 0
-8 + -2x + x2 = 0 + 7x + -7x
-8 + -2x + x2 = 7x + -7x

Combine like terms: 7x + -7x = 0
-8 + -2x + x2 = 0

Factor a trinomial.
(-2 + -1x)(4 + -1x) = 0

Subproblem 1

Set the factor '(-2 + -1x)' equal to zero and attempt to solve: Simplifying -2 + -1x = 0 Solving -2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1x = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1x = 0 + 2 -1x = 0 + 2 Combine like terms: 0 + 2 = 2 -1x = 2 Divide each side by '-1'. x = -2 Simplifying x = -2

Subproblem 2

Set the factor '(4 + -1x)' equal to zero and attempt to solve: Simplifying 4 + -1x = 0 Solving 4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x = 0 + -4 -1x = 0 + -4 Combine like terms: 0 + -4 = -4 -1x = -4 Divide each side by '-1'. x = 4 Simplifying x = 4

Solution

x = {-2, 4}

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