3x+4+8=15

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Solution for 3x+4+8=15 equation:


Simplifying
3x + 4 + 8 = 15

Reorder the terms:
4 + 8 + 3x = 15

Combine like terms: 4 + 8 = 12
12 + 3x = 15

Solving
12 + 3x = 15

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + 3x = 15 + -12

Combine like terms: 12 + -12 = 0
0 + 3x = 15 + -12
3x = 15 + -12

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

Divide each side by '3'.
x = 1

Simplifying
x = 1

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