x+3y+z=90

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Solution for x+3y+z=90 equation:


Simplifying
x + 3y + z = 90

Solving
x + 3y + z = 90

Solving for variable 'x'.

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

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

Combine like terms: 3y + -3y = 0
x + 0 + z = 90 + -3y
x + z = 90 + -3y

Add '-1z' to each side of the equation.
x + z + -1z = 90 + -3y + -1z

Combine like terms: z + -1z = 0
x + 0 = 90 + -3y + -1z
x = 90 + -3y + -1z

Simplifying
x = 90 + -3y + -1z

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