Answer:
linear
Simplifying
3x + y = 84
Solving
3x + y = 84
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-1y' to each side of the equation.
3x + y + -1y = 84 + -1y
Combine like terms: y + -1y = 0
3x + 0 = 84 + -1y
3x = 84 + -1y
Divide each side by '3'.
x = 28 + -0.3333333333y
Simplifying
x = 28 + -0.3333333333y
