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If you mean: y=6+x/ x=7 Then that is the equation for a line. Put in any number for "x" and "y" will always be 6 more than that. In this case, y=13
2 squared plus 2 x 3 = 10, 7 squared plus 7 x 2 = 63, 6 squared plus 6 x 5 = 66,8 squared plus 8 x 4 = 96 so 9 squared plus 9 x 7 = 81 + 63 = 144.
(x^2 - y^2) / (x - y) Apply the difference of squares formula: (x + y)(x - y) / (x - y) Assuming x is not equal to y, we can cancel terms leaving x + y When x = y, the denominator becomes 0, and the equation gives no information.
The expression (X^2 - Y^2) / (X - Y) can be simplified using the difference of squares formula, which states that a^2 - b^2 = (a + b)(a - b). Applying this formula, we get (X + Y)(X - Y) / (X - Y). The (X - Y) terms cancel out, leaving us with the simplified expression X + Y. Therefore, (X^2 - Y^2) / (X - Y) simplifies to X + Y.
The answer is 79. Since you know the values of x and y, you can simply substitute them into the equation to find the answer. x = 6 y = 7 5x + 7y = 5(6) + 7(7) = 30 +49 = 79