7x-7=21x-14

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Solution for 7x-7=21x-14 equation:


Simplifying
7x + -7 = 21x + -14

Reorder the terms:
-7 + 7x = 21x + -14

Reorder the terms:
-7 + 7x = -14 + 21x

Solving
-7 + 7x = -14 + 21x

Solving for variable 'x'.

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

Add '-21x' to each side of the equation.
-7 + 7x + -21x = -14 + 21x + -21x

Combine like terms: 7x + -21x = -14x
-7 + -14x = -14 + 21x + -21x

Combine like terms: 21x + -21x = 0
-7 + -14x = -14 + 0
-7 + -14x = -14

Add '7' to each side of the equation.
-7 + 7 + -14x = -14 + 7

Combine like terms: -7 + 7 = 0
0 + -14x = -14 + 7
-14x = -14 + 7

Combine like terms: -14 + 7 = -7
-14x = -7

Divide each side by '-14'.
x = 0.5

Simplifying
x = 0.5

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