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

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


Simplifying
x2 + 3x + 9 = x2 + 2x + 4

Reorder the terms:
9 + 3x + x2 = x2 + 2x + 4

Reorder the terms:
9 + 3x + x2 = 4 + 2x + x2

Add '-1x2' to each side of the equation.
9 + 3x + x2 + -1x2 = 4 + 2x + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
9 + 3x + 0 = 4 + 2x + x2 + -1x2
9 + 3x = 4 + 2x + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
9 + 3x = 4 + 2x + 0
9 + 3x = 4 + 2x

Solving
9 + 3x = 4 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
9 + 3x + -2x = 4 + 2x + -2x

Combine like terms: 3x + -2x = 1x
9 + 1x = 4 + 2x + -2x

Combine like terms: 2x + -2x = 0
9 + 1x = 4 + 0
9 + 1x = 4

Add '-9' to each side of the equation.
9 + -9 + 1x = 4 + -9

Combine like terms: 9 + -9 = 0
0 + 1x = 4 + -9
1x = 4 + -9

Combine like terms: 4 + -9 = -5
1x = -5

Divide each side by '1'.
x = -5

Simplifying
x = -5

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