2x+x+3-7x=15

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Solution for 2x+x+3-7x=15 equation:


Simplifying
2x + x + 3 + -7x = 15

Reorder the terms:
3 + 2x + x + -7x = 15

Combine like terms: 2x + x = 3x
3 + 3x + -7x = 15

Combine like terms: 3x + -7x = -4x
3 + -4x = 15

Solving
3 + -4x = 15

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + -4x = 15 + -3

Combine like terms: 3 + -3 = 0
0 + -4x = 15 + -3
-4x = 15 + -3

Combine like terms: 15 + -3 = 12
-4x = 12

Divide each side by '-4'.
x = -3

Simplifying
x = -3

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