3=4(x+2)
3=4x+8
4x=3-8
4x=-5
x=-5:4
x=-1,25
============
-7=5(x+5)
-7=5x+25
5x=-7-25
5x=-32
x=-32:5
x=-6,4
=========
9(x+7)=-x
9x+63=-x
9x+x=-63
10x=-63
x=-63:10
x=-6,3
======
5(x-3)=4x
5x-15=4x
5x-4x=15
x=15
=======
4(x+6)=x
4x+24=x
4x-x=-24
3x=-24
x=-24:3
x=-8
===========