Respuesta :

nothankstm
11 9/10 and 3 2/5

[tex] \left \{ {{ 11\frac{9}{10}+3\frac{2}{5}=15\frac{3}{10}} \atop { 11\frac{9}{10}-3\frac{2}{5}=8\frac{5}{10}}} \right. [/tex]

To solve for this, you can create a series of two equations
[tex] \left \{ {{y+x=15 \frac{3}{10} } \atop {y-x= 8\frac{5}{10} }} \right. [/tex]

After that, you solve one of the equations for x and plug it into the other equation.
[tex] \left \{ {{x=15 \frac{3}{10}-y } \atop {y-x= 8\frac{5}{10} }} \right. [/tex]

[tex] {2y-15 \frac{3}{10}= 8\frac{5}{10} [/tex]

Then, solve for variable y
[tex] {2y=23 \frac{8}{10} [/tex]
[tex] {y=11\frac{9}{10} [/tex]

Then, you plug in this value for y into one of the original equations

[tex] 11\frac{9}{10}+x=15 \frac{3}{10} [/tex]

[tex] x=15 \frac{3}{10} -11\frac{9}{10} [/tex]

[tex] x=3 \frac{2}{5} [/tex]

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