3x+15=-x+3

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


Simplifying
3x + 15 = -1x + 3

Reorder the terms:
15 + 3x = -1x + 3

Reorder the terms:
15 + 3x = 3 + -1x

Solving
15 + 3x = 3 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
15 + 3x + x = 3 + -1x + x

Combine like terms: 3x + x = 4x
15 + 4x = 3 + -1x + x

Combine like terms: -1x + x = 0
15 + 4x = 3 + 0
15 + 4x = 3

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

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

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

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

Simplifying
x = -3

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