(7x^2+4x+3)-(7x^2-4)=7x-3

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


Simplifying
(7x2 + 4x + 3) + -1(7x2 + -4) = 7x + -3

Reorder the terms:
(3 + 4x + 7x2) + -1(7x2 + -4) = 7x + -3

Remove parenthesis around (3 + 4x + 7x2)
3 + 4x + 7x2 + -1(7x2 + -4) = 7x + -3

Reorder the terms:
3 + 4x + 7x2 + -1(-4 + 7x2) = 7x + -3
3 + 4x + 7x2 + (-4 * -1 + 7x2 * -1) = 7x + -3
3 + 4x + 7x2 + (4 + -7x2) = 7x + -3

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

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

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

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

Solving
7 + 4x = -3 + 7x

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.
7 + 4x + -7x = -3 + 7x + -7x

Combine like terms: 4x + -7x = -3x
7 + -3x = -3 + 7x + -7x

Combine like terms: 7x + -7x = 0
7 + -3x = -3 + 0
7 + -3x = -3

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

Combine like terms: 7 + -7 = 0
0 + -3x = -3 + -7
-3x = -3 + -7

Combine like terms: -3 + -7 = -10
-3x = -10

Divide each side by '-3'.
x = 3.333333333

Simplifying
x = 3.333333333

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