Question

решите уравнение:

5x-0,8=2x-1,4
5(2x-3)-2(3-2x)=15-6(x+1)
0,6(x-3)-0,5(x-1)=1,5

Answer 1

5x-0.8=2x-1.4
5x-2x=-1.4+0.8
3x=-0.6
x=-0.6/3
x=0.2

5(2x-3)-2(3-2x)=15-6(x+1)
10x-15-6+4x=15-6x-6
14x+6x=9+21
20x=30
x=30/20
x=1.5

0.6(x-3)-0.5(x-1)=1.5
0.6x-1.8-0.5x+0.5=1.5
0.1x=1.5+1.3
0.1x=2.8
x=2.8/0.1
x=28