Question

resolva as equacoes eliminando inicialmente os parenteses 3(x+2) + (1+x) = 13

Answer 1

3(x+2) + (1+x) = 133x + 6 + 1 + x = 13
4x + 7 = 13
4x = 13 - 7
4x = 6
x = 6/4
x = 1,5





Espero ter ajudado, bjs!!