38 + 5x ( 302 -7 x( 77-5x y) -144:6:4+43) :5=328
5x(302-7 x(77-5x y) -24 :4+43):5=328-38
5x ( 302 -7 x ( 77-5x y) - 6+43):5=290
(302-7x(77-5xy) - 6+43):5=290:5
(302 -7x(77-5y)-6 +43):5=58
302 - 7x(77-5y) - 6 +43)=58x8
302-7x(77-5y) -6+43=290
302 -7x(77-5y) -6+=290-43
302 -7x(77-5y) -6=247
302 - 7x(77-5y) =247+6
302 - 7x(77-5y)=253
7x(77-5y)=302-253
7x(77-5y)=49
77-5y=49:7
77-5y=7
5y=77-7
5y=70
y=14
