2x^2-7=7(x-1)

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Solution for 2x^2-7=7(x-1) equation:


Simplifying
2x2 + -7 = 7(x + -1)

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

Reorder the terms:
-7 + 2x2 = 7(-1 + x)
-7 + 2x2 = (-1 * 7 + x * 7)
-7 + 2x2 = (-7 + 7x)

Add '7' to each side of the equation.
-7 + 7 + 2x2 = -7 + 7 + 7x

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

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

Solving
2x2 = 7x

Solving for variable 'x'.

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

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

Factor out the Greatest Common Factor (GCF), 'x'.
x(-7 + 2x) = 0

Subproblem 1

Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0

Subproblem 2

Set the factor '(-7 + 2x)' equal to zero and attempt to solve: Simplifying -7 + 2x = 0 Solving -7 + 2x = 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 + 2x = 0 + 7 Combine like terms: -7 + 7 = 0 0 + 2x = 0 + 7 2x = 0 + 7 Combine like terms: 0 + 7 = 7 2x = 7 Divide each side by '2'. x = 3.5 Simplifying x = 3.5

Solution

x = {0, 3.5}

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