Question

sendo r//s//t determine o valor de x​

Answer 1

c) 2x + 2  /  8   =  4x - 12  / 12

8 * (4x - 12) = 12 * (2x + 12)

32x - 96 = 24x + 144

32x - 24x = 144 + 96

8x = 240

x=  240/8

x = 30

d) 4 / 8 = 6 / x

4 * x = 8 * 6

4x = 48

x = 48/4

x = 12