4(з+3)-7х+3=27
4х+12-7х+3=27
4х-7х=27-12-3
-3х=2
х=0,6
4(x+3)-7x+3=27
4x+12-7x+3=27
-3x+15=27
-3x=27-15
-3x=12
x=-4
4(з+3)-7х+3=27
4х+12-7х+3=27
4х-7х=27-12-3
-3х=2
х=0,6
4(x+3)-7x+3=27
4x+12-7x+3=27
-3x+15=27
-3x=27-15
-3x=12
x=-4