7x-3(4x-x)+225=

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Solution for 7x-3(4x-x)+225= equation:


Simplifying
7x + -3(4x + -1x) + 225 = 0

Combine like terms: 4x + -1x = 3x
7x + -3(3x) + 225 = 0

Remove parenthesis around (3x)
7x + -3 * 3x + 225 = 0

Multiply -3 * 3
7x + -9x + 225 = 0

Reorder the terms:
225 + 7x + -9x = 0

Combine like terms: 7x + -9x = -2x
225 + -2x = 0

Solving
225 + -2x = 0

Solving for variable 'x'.

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

Add '-225' to each side of the equation.
225 + -225 + -2x = 0 + -225

Combine like terms: 225 + -225 = 0
0 + -2x = 0 + -225
-2x = 0 + -225

Combine like terms: 0 + -225 = -225
-2x = -225

Divide each side by '-2'.
x = 112.5

Simplifying
x = 112.5

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