3X+7=25-X

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Solution for 3X+7=25-X equation:


Simplifying
3X + 7 = 25 + -1X

Reorder the terms:
7 + 3X = 25 + -1X

Solving
7 + 3X = 25 + -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.
7 + 3X + X = 25 + -1X + X

Combine like terms: 3X + X = 4X
7 + 4X = 25 + -1X + X

Combine like terms: -1X + X = 0
7 + 4X = 25 + 0
7 + 4X = 25

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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