-x+3(x-7)=25

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Solution for -x+3(x-7)=25 equation:


Simplifying
-1x + 3(x + -7) = 25

Reorder the terms:
-1x + 3(-7 + x) = 25
-1x + (-7 * 3 + x * 3) = 25
-1x + (-21 + 3x) = 25

Reorder the terms:
-21 + -1x + 3x = 25

Combine like terms: -1x + 3x = 2x
-21 + 2x = 25

Solving
-21 + 2x = 25

Solving for variable 'x'.

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

Add '21' to each side of the equation.
-21 + 21 + 2x = 25 + 21

Combine like terms: -21 + 21 = 0
0 + 2x = 25 + 21
2x = 25 + 21

Combine like terms: 25 + 21 = 46
2x = 46

Divide each side by '2'.
x = 23

Simplifying
x = 23

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