How do you solve $x - \frac{5}{7} = 6 \frac{2}{3}$ $x- \frac { 5} { 7} = 6\frac { 2} { 3}$ ?

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Answer 1 · 2017-03-13T02:58:24

$x = \frac{155}{21}$ $x=155/21$

or

$x =$ $x=$ $7$ $7$ $\frac{8}{21}$ $8/21$

$x - \frac{5}{7} = \frac{6 \cdot 3 + 2}{3}$ $x-5/7=(6*3+2)/3$

$x - \frac{5}{7} = \frac{20}{3}$ $x-5/7=20/3$

$x - \frac{5 \cdot 3}{7 \cdot 3} = \frac{20 \cdot 7}{3 \cdot 7}$ $x-(5*3)/(7*3)=(20*7)/(3*7)$

$x - \frac{15}{21} = \frac{140}{21}$ $x-15/21=140/21$

$x = \frac{155}{21}$ $x=155/21$

If needed as a mixed number:

$155 / 21 = 7$ $155//21=7$ remainder $8$ $8$

$x =$ $x=$ $7$ $7$ $\frac{8}{21}$ $8/21$

How do you solve x−57=623x- \frac { 5} { 7} = 6\frac { 2} { 3}?