-7x+9=2r-12

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Solution for -7x+9=2r-12 equation:


Simplifying
-7x + 9 = 2r + -12

Reorder the terms:
9 + -7x = 2r + -12

Reorder the terms:
9 + -7x = -12 + 2r

Solving
9 + -7x = -12 + 2r

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + -7x = -12 + -9 + 2r

Combine like terms: 9 + -9 = 0
0 + -7x = -12 + -9 + 2r
-7x = -12 + -9 + 2r

Combine like terms: -12 + -9 = -21
-7x = -21 + 2r

Divide each side by '-7'.
x = 3 + -0.2857142857r

Simplifying
x = 3 + -0.2857142857r

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