Can somebody solve these equations involving fractions? need it asap

X + 3
= 4
  2

We can get rid of the fraction by multiplying  the terms on each side of the equation by 2 So:-

x + 3 = 4 * 2

x + 3 = 8

x = 5 Answer

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post