Question

Resolva as equações do primeiro grau a seguir:

18m - 12= 36 + 12

8x - 14= 4x - 16​

Answer 1

Resposta:

$18m - 12= 36 + 12\\\\18m-12=48\\\\18m-12+12=48+12\\\\18m=60\\\\\frac{18m}{18}=\frac{60}{18}\\\\m=\frac{10}{3}$

$8x - 14= 4x - 16\\\\8x-14+14=4x-16+14\\\\8x=4x-2\\\\8x-4x=4x-2-4x\\\\4x=-2\\\\\frac{4x}{4}=\frac{-2}{4}\\\\x=-\frac{1}{2}$

Answer 2

Explicação passo-a-passo:

18m - 12= 36 + 12

18m-12=48

18m=48+12

18m=60

m=60÷6/18÷6

m=10/3

8x - 14= 4x - 16

8x-4x=-16+14

4x=-2

x=-2÷2/4÷2

x=-1/2