3x+8-7=12-x+3

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Solution for 3x+8-7=12-x+3 equation:


Simplifying
3x + 8 + -7 = 12 + -1x + 3

Reorder the terms:
8 + -7 + 3x = 12 + -1x + 3

Combine like terms: 8 + -7 = 1
1 + 3x = 12 + -1x + 3

Reorder the terms:
1 + 3x = 12 + 3 + -1x

Combine like terms: 12 + 3 = 15
1 + 3x = 15 + -1x

Solving
1 + 3x = 15 + -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.
1 + 3x + x = 15 + -1x + x

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

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

Add '-1' to each side of the equation.
1 + -1 + 4x = 15 + -1

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

Combine like terms: 15 + -1 = 14
4x = 14

Divide each side by '4'.
x = 3.5

Simplifying
x = 3.5

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