3x+8+5=25

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Solution for 3x+8+5=25 equation: 


Simplifying
3x + 8 + 5 = 25

Reorder the terms:
8 + 5 + 3x = 25

Combine like terms: 8 + 5 = 13
13 + 3x = 25

Solving
13 + 3x = 25

Solving for variable 'x'.

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

Add '-13' to each side of the equation.
13 + -13 + 3x = 25 + -13

Combine like terms: 13 + -13 = 0
0 + 3x = 25 + -13
3x = 25 + -13

Combine like terms: 25 + -13 = 12
3x = 12

Divide each side by '3'.
x = 4

Simplifying
x = 4

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