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

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


Simplifying
7 + 7x + -1(-2x) + 3x = 4

Remove parenthesis around (-2x)
7 + 7x + -1 * -2x + 3x = 4

Multiply -1 * -2
7 + 7x + 2x + 3x = 4

Combine like terms: 7x + 2x = 9x
7 + 9x + 3x = 4

Combine like terms: 9x + 3x = 12x
7 + 12x = 4

Solving
7 + 12x = 4

Solving for variable 'x'.

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

Add '-7' to each side of the equation.
7 + -7 + 12x = 4 + -7

Combine like terms: 7 + -7 = 0
0 + 12x = 4 + -7
12x = 4 + -7

Combine like terms: 4 + -7 = -3
12x = -3

Divide each side by '12'.
x = -0.25

Simplifying
x = -0.25

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