(1)(7/4)*x=3/8+5
x=(43/8)*(4/7)
x=43/14
(2)(1/2)*x-7=(9/6)*x-2
x= -5
(3)(2/3)*x+1-(5/6)*x-1=1
(1/6)*x=-1
x=-6
(4)3*(200+x)/10-2*(300-x)/10=300*(9/25)
(5/10)*x=300*(9/25)
x=216
(1)(7/4)*x=3/8+5
x=(43/8)*(4/7)
x=43/14
(2)(1/2)*x-7=(9/6)*x-2
x= -5
(3)(2/3)*x+1-(5/6)*x-1=1
(1/6)*x=-1
x=-6
(4)3*(200+x)/10-2*(300-x)/10=300*(9/25)
(5/10)*x=300*(9/25)
x=216