а) 5х-3+7x-4=8-15+11x 5x+7x-11x=3+4+8-15 x=0
б)4x+3-10x-11=7+13-4x 4x-10x+4x=7+13-3+11
-2x=28
x=28:(-2)
x=-14
а) 5х-3+7x-4=8-15+11x
5x+7x-11x=3+4+8-15
x=0
б)4x+3-10x-11=7+13-4x
4x-10x+4x=7+13-3+11
-2x=28
x=28:(-2)
x=-14