( 3x + 2) + (4x - 3) + ( x + 7) = 86 what is x

Agrocery store has 12 lb of trail mix that is 10% banana chips. the store's manager would like to add banana chips to bring the new mix up to 25% banana chips. write and solve a system of equations to find out how many pounds of banana chips manager needs to add.

Which equation represents a line that is parallel to the line whose equation is 3x-2y=7( show all work)

Arecipe calls for 32 fluid ounces of heavy cream.how many 1 pint containers of heavy cream are needed to make the recipe?