3x-9=7-7x

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


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

Reorder the terms:
-9 + 3x = 7 + -7x

Solving
-9 + 3x = 7 + -7x

Solving for variable 'x'.

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

Add '7x' to each side of the equation.
-9 + 3x + 7x = 7 + -7x + 7x

Combine like terms: 3x + 7x = 10x
-9 + 10x = 7 + -7x + 7x

Combine like terms: -7x + 7x = 0
-9 + 10x = 7 + 0
-9 + 10x = 7

Add '9' to each side of the equation.
-9 + 9 + 10x = 7 + 9

Combine like terms: -9 + 9 = 0
0 + 10x = 7 + 9
10x = 7 + 9

Combine like terms: 7 + 9 = 16
10x = 16

Divide each side by '10'.
x = 1.6

Simplifying
x = 1.6

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