3x-9+7=90

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Solution for 3x-9+7=90 equation:


Simplifying
3x + -9 + 7 = 90

Reorder the terms:
-9 + 7 + 3x = 90

Combine like terms: -9 + 7 = -2
-2 + 3x = 90

Solving
-2 + 3x = 90

Solving for variable 'x'.

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

Add '2' to each side of the equation.
-2 + 2 + 3x = 90 + 2

Combine like terms: -2 + 2 = 0
0 + 3x = 90 + 2
3x = 90 + 2

Combine like terms: 90 + 2 = 92
3x = 92

Divide each side by '3'.
x = 30.66666667

Simplifying
x = 30.66666667

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