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Answers
Answer:
1) a statement that the values of two mathematical expressions are equal (indicated by the sign =).
2)The term root has been carried over from the equation xn = a to all polynomial equations. Thus, a solution of the equation f(x) = a0xn + a1xn − 1 + … + an − 1x + an = 0, with a0 ≠ 0, is called a root of the equation.
3) In order for a linear system to have a unique solution, there must beSimplifying
3x + 7y = 27
Solving
3x + 7y = 27
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-7y' to each side of the equation.
3x + 7y + -7y = 27 + -7y
Combine like terms: 7y + -7y = 0
3x + 0 = 27 + -7y
3x = 27 + -7y
Divide each side by '3'.
x = 9 + -2.333333333y
Simplifying
x = 9 + -2.333333333y at least as many equations as there are variables. Even so, this does not guarantee a unique solution. The solution to a system of linear equations in two variables is any ordered pair that satisfies each equation independently.
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