Question

determine o valor de x sabendo que r//s//t. ME AJUDEMMMMMM

Answer 1

a) $\frac{2x+2}{5x+1} = \frac{4}{7}$

14x+14=20x-4
14x-20x=-4-14
-6x=-18 .(-1)
6x=18
x= 18/6
x=3

b) $\frac{3x}{2} = \frac{4x+1}{3}$

9x=8x+2
9x-8x=2
x=2