X^2+7x=8x^2

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Solution for X^2+7x=8x^2 equation:


Simplifying
X2 + 7x = 8x2

Solving
X2 + 7x = 8x2

Solving for variable 'X'.

Move all terms containing X to the left, all other terms to the right.

Add '-7x' to each side of the equation.
X2 + 7x + -7x = -7x + 8x2

Combine like terms: 7x + -7x = 0
X2 + 0 = -7x + 8x2
X2 = -7x + 8x2

Simplifying
X2 = -7x + 8x2

Reorder the terms:
X2 + 7x + -8x2 = -7x + 7x + 8x2 + -8x2

Combine like terms: -7x + 7x = 0
X2 + 7x + -8x2 = 0 + 8x2 + -8x2
X2 + 7x + -8x2 = 8x2 + -8x2

Combine like terms: 8x2 + -8x2 = 0
X2 + 7x + -8x2 = 0

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

Subproblem 1

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

Subproblem 2

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

Solution

X = {x, -8x}

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