Question

alguém uurrggeennttee​

Answer 1

a) $x-y=$

$5-(-4)=$

$5+4=$

$9$

b)  $3x+a=$

$3\cdot 2+6=$

$6+6=$

$12$

c) $2x+m=$

$2\cdot (-1)+(-3)=$

$-2-3=$

$-5$

d) $m-2a=$

$3-2\cdot(-5)=$

$3+10=$

$13$

e) $x+y=$

$\frac{1}{2}+(-\frac{1}{5})=$

$\frac{1}{2}-\frac{1}{5}=$

$\frac{5}{10}-\frac{2}{10}=$

$\frac{3}{10}$

f) $a-b=$

$3-(-\frac{1}{2})=$

$3+\frac{1}{2}=$

$\frac{6}{2}+\frac{1}{2}=$

$\frac{7}{2}$