u = -(6/7)w
place all values with 'u' on one side of the equation.
4u + 8w = - 3u + 2w
4u + 3u = 2w - 8w
further simplify the equation by solving the addition and subtraction.
7u = - 6w
make 'u' the independent variable by placing its co-efficient on the right-hand side.
u = - (6/7)w
the correct answer is you spend $55.78 more in a brand store that buy ing in a normal store.
brand = spend $ 135.85 total
store = spend $80.07 total
Because a polygon is a plane figure that is described by a finite number of straight line segments connected to form a closed polygonal chain.