Question

..... + ...... = 8

+ +

...... - ...... = 6

= =
13 8


fill in the blanks correctly.​

Answer 1

Answer:

$a + b = 8 \\ c - d = 6 \\ a + c = 13 \\ b + d = 8 \\ first \:we \: add \: c \: + \: b = 14 \\ then \: second \: we \: subtract \: c - b = 5 \\ then \: we \: add \: both \\ = c = 14\\ \: \: \: \: \: c = \: \: 5 \\ \: \: \: \: \: 2c = 19 \\ so \: c \: = \frac{19}{2} \\ d \\ \: then \: \frac{19}{2} - d = 6 \\ d = \frac{7}{2} \\ a \\ then \: 13 - \frac{19}{2} = \frac{7}{2} \\ a = \frac{7}{2} \\ b \\ 8 - \frac{7}{2} = \frac{9}{2} \\ so \: a = \frac{7}{2} \\ b = \frac{9}{2} \\ c = \frac{19}{2} \: </p><p>and \: </p><p>d= \frac{7}{2} \\ so \: 7 by 2 + 9 by 2 = 8</p><p></p><p>and 19 by 2 - 7 by 2 = 6</p><p></p><p>and 7 by 2 + 19 by 2 = 13</p><p></p><p>and 9 by 2 + 7 by 2 = 8$