3=x+2x+7

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Solution for 3=x+2x+7 equation:


Simplifying
3 = x + 2x + 7

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

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

Solving
3 = 7 + 3x

Solving for variable 'x'.

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

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

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

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

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

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

Divide each side by '-3'.
x = -1.333333333

Simplifying
x = -1.333333333

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