7x+2(x-1)=25

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Solution for 7x+2(x-1)=25 equation:


Simplifying
7x + 2(x + -1) = 25

Reorder the terms:
7x + 2(-1 + x) = 25
7x + (-1 * 2 + x * 2) = 25
7x + (-2 + 2x) = 25

Reorder the terms:
-2 + 7x + 2x = 25

Combine like terms: 7x + 2x = 9x
-2 + 9x = 25

Solving
-2 + 9x = 25

Solving for variable 'x'.

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

Add '2' to each side of the equation.
-2 + 2 + 9x = 25 + 2

Combine like terms: -2 + 2 = 0
0 + 9x = 25 + 2
9x = 25 + 2

Combine like terms: 25 + 2 = 27
9x = 27

Divide each side by '9'.
x = 3

Simplifying
x = 3

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