Question

Simplify (-4/3 + 5/7) x 7/9​

Answer 1

Answer:

Add the numbers

(

−

4

3

+

5

7

)

⋅

7

9

\frac{({\color{#c92786}{-\frac{4}{3}}}+{\color{#c92786}{\frac{5}{7}}}) \cdot x^{7}}{9}

9(−34+75)⋅x7

(

−

1

3

2

1

)

⋅

7

9

\frac{({\color{#c92786}{-\frac{13}{21}}}) \cdot x^{7}}{9}

9(−2113)⋅x7

2

Combine multiplied terms into a single fraction

−

1

3

2

1

7

9

\frac{-\frac{13}{21}x^{7}}{9}

9−2113x7

−

1

3

7

2

1

9

\frac{\frac{-13x^{7}}{21}}{9}

921−13x7

3

Eliminate quotient in numerator

−

1

3

7

2

1

9

\frac{\frac{-13x^{7}}{21}}{9}

921−13x7

−

1

3

7

2

1

⋅

9

\frac{-13x^{7}}{21 \cdot 9}

21⋅9−13x7

4

Multiply the numbers

−

1

3

7

2

1

⋅

9

\frac{-13x^{7}}{{\color{#c92786}{21}} \cdot {\color{#c92786}{9}}}

21⋅9−13x7

−

1

3

7

1

8

9

\frac{-13x^{7}}{{\color{#c92786}{189}}}

189−13x7

Solution

−

1

3

7

1

8

9

\frac{-13x^{7}}{189}

189−13x7