Nilai \( x \) yang memenuhi persamaan \( \quad 125^{x+7}=25^{3 x-4} \) adalah .... Bentuk sederhana dari \( 3 \sqrt{27}+4 \sqrt{48}-\sqrt{12} \) adalah \( \ldots \)

\( \left. \begin{array} { r l r l } { 5 x + 3 x + 2 x } & { = } & { 7 y + 5 y - 9 y } & { = } \\ { 2 a + 4 a + 6 a } & { = } & { 2 a + 3 a - 5 a } & { = } \\ { 3 x + 5 x - 6 x } & { = } & { 10 x - 5 x + 12 x } & { = } \\ { - 5 y - 8 y } & { = } & { - 11 b - 7 b } & { = } \end{array} \right. \)

Simplify. \[ \frac{x^{2} y^{6}}{x^{3} y^{6}} \]

Simplify the expression: \( 3 z-6+7-3 z+9 \)

Which of the following equations represents a line that passes through the points \( (8,2) \) and \( (-4,-7) \) ? I. \( y-2=\frac{3}{4}(x-8) \) II. \( 3 x-4 y=16 \) Answer Neither II only

Simplify. \[ \frac{a^{5} b}{a^{4} b^{7}} \]