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

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Solution for 3x+2(-x)+1x+7=x+3 equation:


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

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

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

Reorder the terms:
7 + 3x + -2x + 1x = x + 3

Combine like terms: 3x + -2x = 1x
7 + 1x + 1x = x + 3

Combine like terms: 1x + 1x = 2x
7 + 2x = x + 3

Reorder the terms:
7 + 2x = 3 + x

Solving
7 + 2x = 3 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
7 + 2x + -1x = 3 + x + -1x

Combine like terms: 2x + -1x = 1x
7 + 1x = 3 + x + -1x

Combine like terms: x + -1x = 0
7 + 1x = 3 + 0
7 + 1x = 3

Add '-7' to each side of the equation.
7 + -7 + 1x = 3 + -7

Combine like terms: 7 + -7 = 0
0 + 1x = 3 + -7
1x = 3 + -7

Combine like terms: 3 + -7 = -4
1x = -4

Divide each side by '1'.
x = -4

Simplifying
x = -4

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