Question

3.(x+5)=2x +3
4.(2x +1)=3.(x+1)

Answer 1

Explicación paso a paso:

$x + 5 = 2x + 3 \\ - 3 + 5 = 2x - x \\ 2 = x \\ 2x + 1 = 3( x + 1) \\ 2x + 1 = 3x + 3 \\ - 3 + 1 = 3x - 2x \\ - 2 = x$

espero te sirva