Question

12) considere as equaçoes abaixo,

sendo U= Q, determine o valor de X+Y

Answer 1

20x-9x=20+9x


20x 9x = 20 + 13
11 = 20 + 13
11 x = 33
11 x ÷11 = 33÷ 11
x = 33÷11
x=3



$\frac{4y - 1}{2} = \frac{ - 2y + 1}{3} \\ \\ 3(4x - 1) = 2( - 2y + 1) \\ 12y - 3 = - 4y + 2 \\ 12 + 4y = 2 + 3 \\ 16y = 5 \\ 16 = 5 \\ y = \frac{5}{16}$