1. Solve the system of linear equation. x+ y+ 3z = 2 3x – 2y + 2z = -2 3x + 2y + 8z = 6

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Equations and inequalities describe the relationship between two mathematical expressions.

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A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.