6-3.75-4x=21

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Solution for 6-3.75-4x=21 equation: 


Simplifying
6 + -3.75 + -4x = 21

Combine like terms: 6 + -3.75 = 2.25
2.25 + -4x = 21

Solving
2.25 + -4x = 21

Solving for variable 'x'.

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

Add '-2.25' to each side of the equation.
2.25 + -2.25 + -4x = 21 + -2.25

Combine like terms: 2.25 + -2.25 = 0.00
0.00 + -4x = 21 + -2.25
-4x = 21 + -2.25

Combine like terms: 21 + -2.25 = 18.75
-4x = 18.75

Divide each side by '-4'.
x = -4.6875

Simplifying
x = -4.6875

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