4x-(30-x)+25=80

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Solution for 4x-(30-x)+25=80 equation:


Simplifying
4x + -1(30 + -1x) + 25 = 80
4x + (30 * -1 + -1x * -1) + 25 = 80
4x + (-30 + 1x) + 25 = 80

Reorder the terms:
-30 + 25 + 4x + 1x = 80

Combine like terms: -30 + 25 = -5
-5 + 4x + 1x = 80

Combine like terms: 4x + 1x = 5x
-5 + 5x = 80

Solving
-5 + 5x = 80

Solving for variable 'x'.

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

Add '5' to each side of the equation.
-5 + 5 + 5x = 80 + 5

Combine like terms: -5 + 5 = 0
0 + 5x = 80 + 5
5x = 80 + 5

Combine like terms: 80 + 5 = 85
5x = 85

Divide each side by '5'.
x = 17

Simplifying
x = 17

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