8x^2+13x-2=7x^2+5+7x

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Solution for 8x^2+13x-2=7x^2+5+7x equation:


Simplifying
8x2 + 13x + -2 = 7x2 + 5 + 7x

Reorder the terms:
-2 + 13x + 8x2 = 7x2 + 5 + 7x

Reorder the terms:
-2 + 13x + 8x2 = 5 + 7x + 7x2

Solving
-2 + 13x + 8x2 = 5 + 7x + 7x2

Solving for variable 'x'.

Reorder the terms:
-2 + -5 + 13x + -7x + 8x2 + -7x2 = 5 + 7x + 7x2 + -5 + -7x + -7x2

Combine like terms: -2 + -5 = -7
-7 + 13x + -7x + 8x2 + -7x2 = 5 + 7x + 7x2 + -5 + -7x + -7x2

Combine like terms: 13x + -7x = 6x
-7 + 6x + 8x2 + -7x2 = 5 + 7x + 7x2 + -5 + -7x + -7x2

Combine like terms: 8x2 + -7x2 = 1x2
-7 + 6x + 1x2 = 5 + 7x + 7x2 + -5 + -7x + -7x2

Reorder the terms:
-7 + 6x + 1x2 = 5 + -5 + 7x + -7x + 7x2 + -7x2

Combine like terms: 5 + -5 = 0
-7 + 6x + 1x2 = 0 + 7x + -7x + 7x2 + -7x2
-7 + 6x + 1x2 = 7x + -7x + 7x2 + -7x2

Combine like terms: 7x + -7x = 0
-7 + 6x + 1x2 = 0 + 7x2 + -7x2
-7 + 6x + 1x2 = 7x2 + -7x2

Combine like terms: 7x2 + -7x2 = 0
-7 + 6x + 1x2 = 0

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

Solution

x = {-7, 1}

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