54-7x=2x+21

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Solution for 54-7x=2x+21 equation:


Simplifying
54 + -7x = 2x + 21

Reorder the terms:
54 + -7x = 21 + 2x

Solving
54 + -7x = 21 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
54 + -7x + -2x = 21 + 2x + -2x

Combine like terms: -7x + -2x = -9x
54 + -9x = 21 + 2x + -2x

Combine like terms: 2x + -2x = 0
54 + -9x = 21 + 0
54 + -9x = 21

Add '-54' to each side of the equation.
54 + -54 + -9x = 21 + -54

Combine like terms: 54 + -54 = 0
0 + -9x = 21 + -54
-9x = 21 + -54

Combine like terms: 21 + -54 = -33
-9x = -33

Divide each side by '-9'.
x = 3.666666667

Simplifying
x = 3.666666667

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