Question

2x+5:2x-1=5:3 пропорция

Answer 1

(2x+5)*3=5(2x-1)
6x+15=10x-5
4x=20
x=5

Answer 2

(2x+5)*3=(2x-1)*5
6x+15=10x-5
10x-5-6x-15
4x-20=0
4x=0
X=20:4
X=5