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0 = 5y + 20 - xso 5y = x - 20or y = (1/5)x - 40 = 5y + 20 - xso 5y = x - 20or y = (1/5)x - 40 = 5y + 20 - xso 5y = x - 20or y = (1/5)x - 40 = 5y + 20 - xso 5y = x - 20or y = (1/5)x - 4
No, linear equations don't have x2. Equation with x and y are usually linear equations. Equations with either x2 or y2 (but never both) are usually quadratic equations.
YES, all linear equations have x-intercepts. because of the x, y has to be there 2!
x + 5y = 0 so x = -5y or y = -x/5 You can express x in terms of y or y in terms of x but it is not possible to solve a single linear equation in two variables.
x = 0 and y = 4