Question

Resolva as equacoes.
2×+6 =×+18 5×-3=2×+9
3(2×-3)+2(×+1)=3×+18 2×+3(×-5)=4×+9 2(×+1)-3(2×-5=6×-3 3×-5=×-2 3×-5=13 3×+5=2 ×-(2×-1)=23 2×-(×-1)=5-(×-3

Answer 1

Ai está as respostas !!