7+3x+x=25

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Solution for 7+3x+x=25 equation: 


Simplifying
7 + 3x + x = 25

Combine like terms: 3x + x = 4x
7 + 4x = 25

Solving
7 + 4x = 25

Solving for variable 'x'.

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

Add '-7' to each side of the equation.
7 + -7 + 4x = 25 + -7

Combine like terms: 7 + -7 = 0
0 + 4x = 25 + -7
4x = 25 + -7

Combine like terms: 25 + -7 = 18
4x = 18

Divide each side by '4'.
x = 4.5

Simplifying
x = 4.5

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