-3x^2+4x-9=4x-7x^2

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Solution for -3x^2+4x-9=4x-7x^2 equation:


Simplifying
-3x2 + 4x + -9 = 4x + -7x2

Reorder the terms:
-9 + 4x + -3x2 = 4x + -7x2

Add '-4x' to each side of the equation.
-9 + 4x + -4x + -3x2 = 4x + -4x + -7x2

Combine like terms: 4x + -4x = 0
-9 + 0 + -3x2 = 4x + -4x + -7x2
-9 + -3x2 = 4x + -4x + -7x2

Combine like terms: 4x + -4x = 0
-9 + -3x2 = 0 + -7x2
-9 + -3x2 = -7x2

Solving
-9 + -3x2 = -7x2

Solving for variable 'x'.

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

Add '7x2' to each side of the equation.
-9 + -3x2 + 7x2 = -7x2 + 7x2

Combine like terms: -3x2 + 7x2 = 4x2
-9 + 4x2 = -7x2 + 7x2

Combine like terms: -7x2 + 7x2 = 0
-9 + 4x2 = 0

Add '9' to each side of the equation.
-9 + 9 + 4x2 = 0 + 9

Combine like terms: -9 + 9 = 0
0 + 4x2 = 0 + 9
4x2 = 0 + 9

Combine like terms: 0 + 9 = 9
4x2 = 9

Divide each side by '4'.
x2 = 2.25

Simplifying
x2 = 2.25

Take the square root of each side:
x = {-1.5, 1.5}

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