Question

Solve and graph the solution set 7×{4_×}<12_3{5+6×}

Answer 1

you appear to be using × as both a variable and the multiplication operator.

and _ is not the same as -
learn your keyboard ...

The context makes me think you meant
7(4-x) < 12-3(5+6x)
28-7x < 12 - 15 - 18x
11x < -31
x < -31/11