Question

8p +7q =4 6p -4q =3 equações de 1* grau

Answer 1

Equação do 1º:

$\mathtt{8p+7p = 4} \\ \mathtt{15p = 4} \\ \mathtt{p = 4/15}  \\ \\ \\ \mathtt{6p -4p =3} \\ \mathtt{2p=3} \\ \mathtt{p=3/2}$

Answer 2

8p+6p=4+3
14p=7
p=14/7
p=2

7q-4q=4+3
3q=7
q=7/3
q=2,3