3x-4=21-5.25

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Solution for 3x-4=21-5.25 equation:


Simplifying
3x + -4 = 21 + -5.25

Reorder the terms:
-4 + 3x = 21 + -5.25

Combine like terms: 21 + -5.25 = 15.75
-4 + 3x = 15.75

Solving
-4 + 3x = 15.75

Solving for variable 'x'.

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

Add '4' to each side of the equation.
-4 + 4 + 3x = 15.75 + 4

Combine like terms: -4 + 4 = 0
0 + 3x = 15.75 + 4
3x = 15.75 + 4

Combine like terms: 15.75 + 4 = 19.75
3x = 19.75

Divide each side by '3'.
x = 6.583333333

Simplifying
x = 6.583333333

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