75=3x+(x-3)

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Solution for 75=3x+(x-3) equation:


Simplifying
75 = 3x + (x + -3)

Reorder the terms:
75 = 3x + (-3 + x)

Remove parenthesis around (-3 + x)
75 = 3x + -3 + x

Reorder the terms:
75 = -3 + 3x + x

Combine like terms: 3x + x = 4x
75 = -3 + 4x

Solving
75 = -3 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
75 + -4x = -3 + 4x + -4x

Combine like terms: 4x + -4x = 0
75 + -4x = -3 + 0
75 + -4x = -3

Add '-75' to each side of the equation.
75 + -75 + -4x = -3 + -75

Combine like terms: 75 + -75 = 0
0 + -4x = -3 + -75
-4x = -3 + -75

Combine like terms: -3 + -75 = -78
-4x = -78

Divide each side by '-4'.
x = 19.5

Simplifying
x = 19.5

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