Resposta :
Resposta:
Explicação passo a passo:
[tex]Questao 7 \\3x=2(180-x)\\3x=360-2x\\3x+2x=360\\5x=360\\x=\frac{360}{5} \\x=72[/tex]
[tex]Questao 8 \\180-x=4(90-x)\\180-x=360-4x\\-x+4x=360-180\\3x=180\\x=\frac{180}{3} \\x=60[/tex]
Resposta:
Explicação passo a passo:
[tex]Questao 7 \\3x=2(180-x)\\3x=360-2x\\3x+2x=360\\5x=360\\x=\frac{360}{5} \\x=72[/tex]
[tex]Questao 8 \\180-x=4(90-x)\\180-x=360-4x\\-x+4x=360-180\\3x=180\\x=\frac{180}{3} \\x=60[/tex]