3(7x-7)=9x

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Solution for 3(7x-7)=9x equation:


Simplifying
3(7x + -7) = 9x

Reorder the terms:
3(-7 + 7x) = 9x
(-7 * 3 + 7x * 3) = 9x
(-21 + 21x) = 9x

Solving
-21 + 21x = 9x

Solving for variable 'x'.

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

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

Combine like terms: 21x + -9x = 12x
-21 + 12x = 9x + -9x

Combine like terms: 9x + -9x = 0
-21 + 12x = 0

Add '21' to each side of the equation.
-21 + 21 + 12x = 0 + 21

Combine like terms: -21 + 21 = 0
0 + 12x = 0 + 21
12x = 0 + 21

Combine like terms: 0 + 21 = 21
12x = 21

Divide each side by '12'.
x = 1.75

Simplifying
x = 1.75

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