(4x^2+6x+4)-(4x^2-5)=8x-16

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Solution for (4x^2+6x+4)-(4x^2-5)=8x-16 equation:


Simplifying
(4x2 + 6x + 4) + -1(4x2 + -5) = 8x + -16

Reorder the terms:
(4 + 6x + 4x2) + -1(4x2 + -5) = 8x + -16

Remove parenthesis around (4 + 6x + 4x2)
4 + 6x + 4x2 + -1(4x2 + -5) = 8x + -16

Reorder the terms:
4 + 6x + 4x2 + -1(-5 + 4x2) = 8x + -16
4 + 6x + 4x2 + (-5 * -1 + 4x2 * -1) = 8x + -16
4 + 6x + 4x2 + (5 + -4x2) = 8x + -16

Reorder the terms:
4 + 5 + 6x + 4x2 + -4x2 = 8x + -16

Combine like terms: 4 + 5 = 9
9 + 6x + 4x2 + -4x2 = 8x + -16

Combine like terms: 4x2 + -4x2 = 0
9 + 6x + 0 = 8x + -16
9 + 6x = 8x + -16

Reorder the terms:
9 + 6x = -16 + 8x

Solving
9 + 6x = -16 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
9 + 6x + -8x = -16 + 8x + -8x

Combine like terms: 6x + -8x = -2x
9 + -2x = -16 + 8x + -8x

Combine like terms: 8x + -8x = 0
9 + -2x = -16 + 0
9 + -2x = -16

Add '-9' to each side of the equation.
9 + -9 + -2x = -16 + -9

Combine like terms: 9 + -9 = 0
0 + -2x = -16 + -9
-2x = -16 + -9

Combine like terms: -16 + -9 = -25
-2x = -25

Divide each side by '-2'.
x = 12.5

Simplifying
x = 12.5

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