3x-9=(-7x)+12

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Solution for 3x-9=(-7x)+12 equation:


Simplifying
3x + -9 = (-7x) + 12

Reorder the terms:
-9 + 3x = (-7x) + 12

Reorder the terms:
-9 + 3x = 12 + (-7x)

Solving
-9 + 3x = 12 + (-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) = 12 + (-7x) + (7x)

Combine like terms: 3x + (7x) = 10x
-9 + 10x = 12 + (-7x) + (7x)

Combine like terms: (-7x) + (7x) = 0
-9 + 10x = 12 + 0
-9 + 10x = 12

Add '9' to each side of the equation.
-9 + 9 + 10x = 12 + 9

Combine like terms: -9 + 9 = 0
0 + 10x = 12 + 9
10x = 12 + 9

Combine like terms: 12 + 9 = 21
10x = 21

Divide each side by '10'.
x = 2.1

Simplifying
x = 2.1

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