3x-y+2x+7y=90

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Solution for 3x-y+2x+7y=90 equation:


Simplifying
3x + -1y + 2x + 7y = 90

Reorder the terms:
3x + 2x + -1y + 7y = 90

Combine like terms: 3x + 2x = 5x
5x + -1y + 7y = 90

Combine like terms: -1y + 7y = 6y
5x + 6y = 90

Solving
5x + 6y = 90

Solving for variable 'x'.

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

Add '-6y' to each side of the equation.
5x + 6y + -6y = 90 + -6y

Combine like terms: 6y + -6y = 0
5x + 0 = 90 + -6y
5x = 90 + -6y

Divide each side by '5'.
x = 18 + -1.2y

Simplifying
x = 18 + -1.2y

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